Measurement of cadmium in plants using UV spectrophotometer

Measurement of cadmium in plants using UV spectrophotometer, Total:181 items.

The international standard classification for "Measurement of cadmium in plants using UV spectrophotometer" includes: Cadmium, cobalt and their alloys , Analytical chemistry in general , Animal and vegetable fats and oils , Workplace atmospheres , Alcohols. Ethers , Sugar and sugar products , Beekeeping , Waxes, bituminous materials and other petroleum products , Optics and optical measurements , Farming and forestry in general , General methods of tests and analysis for food products , Biology. Botany. Zoology , Petroleum products in general .

The Chinese standard classification for "Measurement of cadmium in plants using UV spectrophotometer" includes: Heavy metals and their alloys analysis method , Electrochemical, thermochemistry and optical profile type analyzer , Grease and oil processing and products , Labor sanitation , Basic organic chemicals , Sugar refining , Beekeeping, silkworm keeping , Petroleum wax , Cosmetics , Electron optics and other physical optics instrument , Chemical Measurement , Agriculture and forestry technology , Basic standards and general methods on chemical fertilizers , Basic standards and general methods , Analysis methods for exhaust emission pollutants , Environmental Quality Standard for atmosphere, water and soil , Fuel oil , Petroleum products in general .

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 26813-2011 Double beam UV/VIS spectrophotometer
GB/T 22500-2008 Animal and vegetable fats and oils—Determination of ultraviolet absorbance expressed as specific UV extinction
GB/T 2130-1980 Determination of copper content in cadmium--Neoluproine lead-base photometric method
GB/T 16077-1995 Workplace air―Determination of phosgene―Ultraviolet spectrophotometric method
GB/T 2133-1980 Determination of arsenic content in cadmium--Arsenic-molybdenum blue photometric method
GB/T 11081-1989 White oils-Determination of ultraviolet absorption
GB/T 14571.4-2008 glycol for industrial use - Determination of ultraviolet transmittance - Ultraviolet spectrophotometric method
GB/T 2136-1980 Determination of thallium content in cadmium--Crystal violet photometric method
GB/T 16055-1995 Workplace air―Determination of diphenyl-diphenyl ether―Ultraviolet spectrophotometric method
GB/T 26798-2011 Single beam UV/VIS spectrophotometer
GB/T 23195-2008 Method for the determination of catalase in bee pollen - Ultaraviolet spectrophotometry
GB/T 11081-2005 Standard test method for ultraviolet adsorption of white oils
GB/T 32737-2016 Determination of nitrate nitrogen in soil—Ultraviolet spectrophotometry method
GB/T 2132-1980 Determination of iron content in cadmium--1, 10-phenanthroline photometric method
GB/T 2134-1980 Determination of antimony content in cadmium--Malachite green photometric method
GB/T 2131-1980 Determination of zinc content in cadmium--Atomic absorption spectrophotometric method
GB/T 2135-1980 Determination of tin content in cadmium--Phenylfluorone-CTAB photometric method
GB/T 34796-2017(英文版) Quantification and purity analysis of nucleic acid concentration in solution—Ultraviolet spectrophotometry
GB/T 18932.6-2002 Method for the determination of glycerol contents in honey--UV spectrophotometric method
GB/T 36084-2018(英文版) Nanotechnology - Determination of copper, manganese and chromium ion content in aqueous solution - UV-visible spectrophotometry
GB/T 2129-1980 Determination of lead content in cadmium--Atomic absorption spectrophotometric method

Professional Standard - Light Industry

QB/T 2334-1997 Method for the Qualitative Determination of Ultraviolet Absorbents in Cosmetics - Ultraviolet Spectrophotometry

Professional Standard - Machinery

JB/T 6777-1993 UV/VIS Spectrophotometer
JB/T 6778-1993 UV/VIS Near Infrared Spectrophotometer
JB/T 6779-1993 Infrared Spectrophotometer

Tianjin Provincial Standard of the People's Republic of China

DB12/T 884-2019 Determination of Polysaccharide Content in Lily Bulbs by UV/Vis Spectrophotometry
DB12/T 885-2019 Determination of Proanthocyanidins in Plant Extracts by UV/Vis Spectrophotometry

National Metrological Verification Regulations of the People's Republic of China

JJG 682-1990 Verification Regulation of Double Beam UV-VIS Spectrophotometers
JJG(地质) 1002-1990 Verification Regulations for UV/Visible Spectrophotometer
JJG 178-2007 Ultraviolet,Visible,Near-Infrared Spectrophotometers
JJG 375-1996 UItraviolet Visible Range Spectrophotometer in Single Beam
JJG 689-1990 UV-VIS-NIR Spectrophotometer

Group Standards of the People's Republic of China

T/QAS 035-2021 Determination of nitrate in brine by ultraviolet spectrophotometry
T/GXAS 545-2023 Seawater—Rapid determination of petroleum on site—Ultraviolet spectrophotometric method
T/STIC 110086-2023 Double Beam UV-VIS Spectrophotometer

Professional Standard - Water Conservancy

SL 93.2-1994 Determination of oil and grease (Vltraviolet spectrophotometric method)
SL 84-1994 Determination of nitrogen(nitrate) (Ultraviolet spectrophtometric method)

国家能源局

SH/T 0966-2017 Determination of aromatic hydrocarbon content in white oil by UV spectrophotometry

Professional Standard - Agriculture

1759药典一部-2010 Appendix VA UV-Vis Spectrophotometry
178药典三部-2015 Spectrophotometry 0401 UV-Vis Spectrophotometry General Principles 19
67药典四部-2015 0401 UV-visible spectrophotometry
NY/T 1279-2007 Determination of Nitrate in Vegetables and Fruits UV-spectrophotometer
NY/T 2420-2013 Determination of total potassium in plant - Flame photomery method
NY/T 1799-2009 Determination of oxazolidinethione in rapeseed meal and feed Specification method
47药典四部-2020 0401 UV-visible spectrophotometry
NY/T 1116-2006 Fertilizers - Determination of nitrate nitrogen content - Ultraviolet spectro - Photometric method
197药典三部-2020 Spectrophotometry 0401 UV-Vis Spectrophotometry
2297药典二部-2010 Appendix IV A UV-Vis Spectrophotometry
153药典三部-2010 Appendix Ⅱ Spectrophotometry ⅡA UV-Vis Spectrophotometry
NY/T 1597-2008 Animal and vegetable fats and oils—Determination of ultraviolet absorbance expressed ad specific UV extinction
NY/T 4306-2023 Determination of activity of papain and bromelain-Ultaraviolet spectrophotometry

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

GB/T 34796-2017 Quantification and purity analysis of nucleic acid concentration in solution-Ultraviolet spectrophotometry

Military Standard of the People's Republic of China-General Armament Department

GJB 4781-1997(XG1-2015) Modification sheet 1-2015 for the ultraviolet spectrophotometric method for determination of Sies
GJB 4781-1997*GJBz 20413.3-1997 Determination of Sies by UV spectrophotometry
GJB 3639-1999(XG1-2015) Determination of Benzene Chloroacetophenone UV Spectrophotometry Modification Sheet 1-2015
GJB 3639-1999 Determination of Benzene Chloroacetophenone UV Spectrophotometry

Shandong Provincial Standard of the People's Republic of China

DB37/T 4149-2020 Determination of water quality UV254 by ultraviolet spectrophotometry

Professional Standard - Environmental Protection

HJ 970-2018 Water quality - Determination of petroleum - Ultraviolet spectrophotometric method
HJ/T 42-1999 Stationary source emission -- Determination of nitrogen oxide -- Ultraviolet spectrophotometric method
HJ/T 31-1999 Stationary source emission -- Determination of phosgene -- Aniline ultraviolet spectrophotometric method
HJ 756-2015 Water quality - Determination of butyl xanthate - UV spectrophotometric method
HJ/T 346-2007 Water quality-Determination of nitrate-nitrogen-Ultraviolet spectrophotometry

国家质量监督检验检疫总局

SN/T 0859-2016 Determination of dehydroacetic acid in condiments for export- Ultraviolet spectrophotometric method

National Metrological Technical Specifications of the People's Republic of China

JJF 1641-2017 Program of Pattern Evaluation of Ultraviolet—Visible Spectrophotometers

Professional Standard - Non-ferrous Metal

YS/T 74.8-2010 Methods for chemical analysis of cadmium - Part 8: Determination of thallium content - Crystal violet spectrophotometry
YS/T 74.8-1994 Method for chemical analysis of cadmium Crystal violet spectrophotometric method for determination of thallium

Liaoning Provincial Standard of the People's Republic of China

DB21/T 618-1991 Determination of total plant potassium - flame photometry

Ningxia Provincial Standard of the People's Republic of China

DB64/T 1515-2017 Determination of Total Glucosides in Sheep Placenta Capsules by Ultraviolet Spectrophotometry

Professional Standard - Petrochemical Industry

SH/T 0406-1992 Determination method for vaseline ultraviolet absorbance
SH/T 1498.7-1997 Nylon 66 salt - Determination of UV index - -Ultraviolet spectrophotometric method
SH/T 0409-1992 Determination of aromatic hydrocarbons in liquid paraffin (UV spectrophotometric method)
SH/T 1498.5-1997 Nylon 66 salt-Determination of content of pscudo diaminocylohcloexane-Uitraviolet specterophotometric method
SH/T 0662-1998 Mineral oil - Determination of ultraviolet absorbance
SH/T 0181-2005 Standard test method for naphthalene hydrocarbons in jet fuels by ultraviolet spectrophotometry
SH/T 0181-1992 Method for Determination of Naphthalene Hydrocarbon Content in Jet Fuel (Ultraviolet Spectrophotometry)

未注明发布机构

ASTM RR-D02-1525 2002 D1840- Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry
ASTM RR-D02-1375 1995 D1840-Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 14571.4-2022 Test method of ethylene glycol for industrial use—Part 4：Determination of ultraviolet transmittance—Ultraviolet spectrophotometric method

Professional Standard - Nuclear Industry

EJ/T 296.2-2014 Determination of trace uranium in urine liquid fluorometry by ultraviolet

Professional Standard - Chemical Industry

HG/T 4550.3-2013 Determination of Cadmium in Waste Chemicals - Part 3: Cadion Spectrophotometic Method

Hebei Provincial Standard of the People's Republic of China

DB13/T 2899-2018 Determination of iminodisuccinate content in urea by ultraviolet-visible spectrophotometry

Professional Standard - Commodity Inspection

SN/T 3635-2013 Detection of phytic acid in food for exprot.Colorimetric method

GSO

GSO ISO 3656:2015 Animal and vegetable fats and oils -- Determination of ultraviolet absorbance expressed as specific UV extinction
BH GSO ISO 3656:2016 Animal and vegetable fats and oils -- Determination of ultraviolet absorbance expressed as specific UV extinction
NB/SH/T 0966-2017 Determination of aromatics content in white oil - UV spectrophotometry
GSO ASTM G130:2010 Standard Test Method for Calibration of Narrow- and Broad- Band Ultraviolet Radiometers Using a Spectroradiometer
BH GSO ASTM E958:2022 Standard Practice for Estimation of the Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
GSO ASTM E958:2021 Standard Practice for Estimation of the Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
GSO ISO 4735:2015 Oils of Citrus -- Determination of CD value by ultraviolet spectrometric analysis
BH GSO ASTM E275:2022 Standard Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
GSO ASTM E275:2021 Standard Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
OS GSO ISO 13964:2015 Air quality -- Determination of ozone in ambient air -- Ultraviolet photometric method
GSO ISO 13964:2015 Air quality -- Determination of ozone in ambient air -- Ultraviolet photometric method

Association Francaise de Normalisation

NF EN ISO 3656:2011 Fatty substances of animal and vegetable origin - Determination of ultraviolet absorbance, expressed in the form of specific extinction in ultraviolet light
NF T60-223*NF EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction.
NF T60-223/A1*NF EN ISO 3656/A1:2017 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction - Amendment 1
NF EN ISO 3656/A1:2017 Fatty substances of animal and vegetable origin - Determination of ultraviolet absorbance, expressed in the form of specific extinction in ultraviolet light - Amendment 1
NF X43-024*NF ISO 13964:1999 Air quality. Determination of ozone in ambient air. Ultraviolet photometric method.
NF T75-122*NF ISO 4735:2002 Oils of Citrus - Determination of CD value by ultraviolet spectrometric analysis.
NF ISO 13964:1999 Air quality - Determination of ozone in ambient air - Ultraviolet photometric method

Korean Agency for Technology and Standards (KATS)

KS B 5570-2017 Performance test for UV/Vis spectrophotometer
KS B 5570-2022 Performance test for UV/Vis spectrophotometer
KS I ISO 13964:2004 Air quality-Determination of ozone in ambient air-Ultraviolet photometric method
KS I ISO 13964:2014 Air quality — Determination of ozone in ambient air — Ultraviolet photometric method
KS H ISO 4735-2019 Oils of Citrus－Determination of CD value by ultraviolet spectrometric analysis
KS M 2231-2014 Testing method for naphthalene type hydrocarbon contents in aviation turbine fuels by ultraviolet spectrophotometry
KS M 2231-1980 Testing method for naphthalene type hydrocarbon contents in aviation turbine fuels by ultraviolet spectrophotometry
KS H ISO 4735:2011 Oils of Citrus-Determination of CD value by ultraviolet spectrometric analysis
KS H ISO 4735:2014 Oils of Citrus－Determination of CD value by ultraviolet spectrometric analysis
KS M 2231-2010 Testing method for naphthalene type hydrocarbon contents in aviation turbine fuels by ultraviolet spectrophotometry
KS I ISO 13964-2019 Air quality — Determination of ozone in ambient air — Ultraviolet photometric method

German Institute for Standardization

DIN EN ISO 3656:2017-08 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011 + Amd 1:2017); German version EN ISO 3656:2011 + A1:2017
DIN ISO 13964:1999 Air quality - Determination of ozone in ambient air - Ultraviolet photometric method (ISO 13964:1998)
DIN EN ISO 3656:2017 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011 + Amd 1:2017) (includes Amendment :2017)
DIN EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011); German version EN ISO 3656:2011
DIN ISO 13964:1999-12 Air quality - Determination of ozone in ambient air - Ultraviolet photometric method (ISO 13964:1998)

Danish Standards Foundation

DS/EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction

SCC

DANSK DS/EN ISO 3656/A1:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction
DANSK DS/EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction
NS-EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011)
10/30197374 DC BS ISO 3656. Animal and vegetable fats and oils. Determination of ultraviolet absorbance expressed as specific UV extinction
NS-EN ISO 3656:2002 Animal and vegetable fats and oils — Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2002)
BS EN ISO 3656:2002 Animal and vegetable fats and oils. Determination of ultraviolet absorbance expressed as specific UV extinction
UNE-EN ISO 3656:2002 Animal and vegetable fats and oils. Determination of ultraviolet absorbance expressed as specific UV extinction. (ISO 3656:2002)
AENOR UNE-EN ISO 3656:2011 Oils and fats of animal and vegetable origin. Determination of ultraviolet absorbance expressed as specific UV extinction. (ISO 3656:2011)
UNE 84170:1983 OIL OF LEMON. ULTRA-VIOLET SPECTROPHOTO METRIC ANALYSIS
AATCC EP11-2016 Spectrophotometer UV Energy Calibration Procedure for Optically Brightened Textiles
NS 9462:2006 Water quality — Determination of UV-absorbance
DIN EN ISO 3656 E:2010 Draft Document - Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO/DIS 3656:2009); German version prEN ISO 3656:2009
AENOR UNE-EN ISO 3656/A1:2017 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction - Amendment 1 (ISO 3656:2011/Amd 1:2017)
UNE 84124:2000 Cosmetic raw materials. Determination of UV-filters by spectrophotometric absorbance.
AWWA JAW30356 Journal AWWA — Using Cobalt-Ultraviolet Spectrophotometry to Measure Hydrogen Peroxide Concentration in Organically Laden Groundwaters

American Society for Testing and Materials (ASTM)

ASTM E958-93(2005) Standard Practice for Measuring Practical Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
ASTM E958-93(1999) Standard Practice for Measuring Practical Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
ASTM E958-13(2021) Standard Practice for Estimation of the Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
ASTM UOP495-00 Aromatics in Molex n-Paraffin Products by Ultraviolet Spectrophotometry
ASTM E925-09 Standard Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Slit Width does not Exceed 2 nm
ASTM E275-08 Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
ASTM E925-02 Standard Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Slit Width does not Exceed 2 nm
ASTM E275-08(2022) Standard Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
ASTM E925-83(1994)e1 Standard Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Slit Width does not Exceed 2 nm
ASTM E925-09(2022) Standard Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Bandwidth does not Exceed 2 nm
ASTM E275-08(2013) Standard Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
ASTM D1840-22 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry
ASTM E275-93 Standard Practice for Describing and Measuring Performance of Ultraviolet, Visible, and Near-Infrared Spectrophotometers
ASTM UOP495-03 Aromatics in Molex Process n-Paraffin Products by Ultraviolet Spectrophotometry
ASTM E275-01 Standard Practice for Describing and Measuring Performance of Ultraviolet, Visible, and Near-Infrared Spectrophotometers
ASTM D1840-02 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry
ASTM D1840-03 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry
ASTM D1840-96 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry

RO-ASRO

STAS SR ISO 3656:1996 Animal and vegetable fats and oils - Determination of ultraviolet absorbance

AENOR

UNE-EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011)
UNE 55047:1973 FATS. SPECTROPHOTOMETRIC MEASURE OF ABSORPTION IN THE ULTRAVIOLET AREA.
UNE-EN ISO 3656:2011/A1:2017 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction - Amendment 1 (ISO 3656:2011/Amd 1:2017)
UNE 84124:2014 Cosmetic raw materials. Determination of UV-filters by spectrophotometric absorbance.

DIN

DIN EN ISO 3656:2002 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2002)

Lithuanian Standards Office

LST EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011)

European Committee for Standardization (CEN)

EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011)
EN ISO 3656:2011/A1:2017 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction - Amendment 1 (ISO 3656:2011/Amd 1:2017)

International Organization for Standardization (ISO)

ISO 3656:2011 Animal and vegetable fats and oils. Determination of ultraviolet absorbance expressed as specific UV extinction
ISO 13964:1998 Air quality - Determination of ozone in ambient air - Ultraviolet photometric method
ISO 3656:2011/Amd 1:2017 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction; Amendment 1
ISO 4735:2002 Oils of citrus - Determination of CD value by ultraviolet spectrometric analysis
ISO 13964:1998/PRF Amd 1 Air quality-Determination of ozone in ambient air-Ultraviolet photometric method

British Standards Institution (BSI)

BS EN ISO 3656:2011+A1:2017 Animal and vegetable fats and oils. Determination of ultraviolet absorbance expressed as specific UV extinction
BS ISO 13964:1998(1999) Air quality — Determination of ozone in ambient air — Ultravioletphotometric method

Indonesia Standards

SNI 06-7129-2005 Test methods of chromium (IV) content in leather by spectrophotometers

CEN - European Committee for Standardization

EN ISO 3656:2002 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction

PL-PKN

PN C97087-1987 UV Spectrophotometric determination of phenols in coke and waste waters
PN C97085-1986 Carbochemical products UV Spectrophotometric determination of naphihalene in coal tar and coal tar oils
PN C97089-1989 Carbochemical products UV spectrophotometric determination of anthracene in coal tar and coal tar oils
PN Z04171-02-1986 Air purity protection ests for picric acid etermination of picric acid n work places by UV pectrophotometry absorption

ZA-SANS

SANS 13964:2004 Air quality - Determination of ozone in ambient air - Ultraviolet photometric method

NL-NEN

NEN 6306-1990 Vegetable and animal oils and fats Determination of extinction co?ffici?nt in the ultraviolet spectre

Japanese Industrial Standards Committee (JISC)

JIS K 0807:1997 Ultraviolet photometer for monitoring of water pollution

Standard Association of Australia （SAA）

ISO 3656:2011/Amd.1:2017 Animal and vegetable fats and oils — Determination of ultraviolet absorbance expressed as specific UV extinction AMENDMENT 1

NO-SN

NS 9462-2006 Water quality Determination of UV-absorbance

IN-BIS

IS 1448 Pt.63-1967 Determination of benzene and toluene by UV spectrophotometry

Universal Oil Products Company (UOP)

UOP 495-2003 AROMATICS IN MOLEX PROCESS n-PARAFFIN PRODUCTS BY ULTRAVIOLET SPECTROPHOTOMETRY

RU-GOST R

GOST ISO 4735-2015 Essential oils of citrus. Determination of CD value by ultraviolet spectrometric analysis

VN-TCVN

TCVN 7171-2002 Air quality.Determination of ozone in ambient air.Ultraviolet photometric method

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