SN/T 0660-2016 in English
VALIDDetermination of propargite reduce in cereals for export
- Issued on:2016-06-28
- Implemented on:2017-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$282.00
| Standard No: | SN/T 0660-2016 |
| Document status: | VALID |
| Title in English: | Determination of propargite reduce in cereals for export |
| Title in Chinese: | 出口粮谷中克螨特残留量的测定 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2016-06-28 |
| Implemented on: | 2017-02-01 |
| Superseding: |
SN 0660-1997 Method for the determination of propargite residues in cereals for export
|
| Professional Classification: | SN-Import&Export Inspection |
| Related Keywords: | propargite residues
exported grains determination % parallel determination 0660-2016 standard name test method > lc-ms/ms confirmation method limit |
| Related Topics: | Grain
Allowance propargite rations Out of grams tool for measuring grams two rations Disabled |
Introduction
Core changes in the standard revision
| Technical elements | SN 0660-1997 | SN/T 0660-2016 |
|---|---|---|
| Standard name | Test method for propargite residues in exported grains | Determination of propargite residues in exported grains |
| Detection range | Single matrix | Extended to wheat, barley, rice, soybean and corn |
| Methodology | Gas chromatography only | Newly added class=instrument>LC-MS/MS confirmation method |
| Limit of detection (LOD) | 0.01-0.05 mg/kg | Optimized to 0.005-0.05 mg/kg |
Key technical improvements
1. Pretreatment optimization
Acetonitrile ultrasonic extraction combined with C18 column cleanup, compared with the 1997 version:
- Extraction efficiency increased by 30% (recovery rate 82.7-95.2%)
- Introducing Florisil column for secondary cleanup to reduce matrix interference
- Delete the sampling link and focus on the detection method itself
2. Dual method validation system
Gas chromatography (first method)
Configured with flame photometric detector (sulfur filter), key parameters:
- Chromatographic column: HP-5 (30m×0.32mm×0.25μm)
- Detection limit: 0.01 mg/kg (wheat/rice)
- Retention time: 12.253 min (HP-5 column)
LC-MS/MS (second method)
Adopting electrospray ion source (ESI+), advantages:
- Detection limit as low as 0.005 mg/kg
- Qualitative ion pair: m/z 368.2→231.1 (quantitative), 368.2→175
- Gradient elution: acetonitrile-5mmol/L ammonium acetate (containing 0.1% formic acid)
Implementation points
Quality control requirements
- Blank test: each batch of samples needs to be carried out simultaneously
- Recovery control: different matrices need to meet the range of 70.5-95.2%
- Parallel determination: relative deviation ≤15%
Key points
- Standard storage: 1.0 mg/mL stock solution needs to be stored at 0-4℃ away from light
- Florisil activation: calcined at 620℃ for 4h, then activated with 5% water
- Mass spectrometer maintenance: calibrate the mass axis daily and clean the ion source regularly
Analysis of Standard Evolution
The 2016 version of the standard responds to the Codex Alimentarius Commission (CAC)'s requirements for technical upgrades in pesticide residue detection, with major advances:
- Introduction of multi-residue confirmation technology to meet the requirements of EU (EC) No 396/2005 regulations
- The detection limit is reduced by 50% to adapt to the stringent standards of Japan's positive list system
- The method validation covers 5 kinds of grain matrices to improve universality
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
SN 0283-1994 in English
\"Method for Inspection of Dichlorodipyridinol Residues in Exported Poultry Meat\"
1994-02-18 -
SN/T 2622-2019 in English
Detection and identification of X anthomonas citri subsp. citri Gabriel et al.( 1989)
2019-09-03 -
SN/T 0244-1994 in English
\"General Rules for Inspection and Certification of Imported Mechanical and Electrical Instruments\"
1993-08-01 -
SN/T 4084-2014 in English
Food contact materials―Polymers―Determination of BADGE||BFDGE and their hydroxy and chlorinated derivatives in food simulants―Liquid chromatography-tandem mass spectrometry
2014-11-19 -
SN/T 1192-2015 in English
Codes of quarantine inspection for entry-exit ships
2015-09-02 -
SN/T 3370-2012 in English
Determination of arsenic, mercury in tungsten ore-Atomic fluorescence spectrometric method
2012-12-12 -
SN/T 1626-2019 in English
Determination of metronidazole, tinidazole, ornidazole, ronidazole, dimetridazole and secnidazole residues in meat and meat products for export - LC-MS/MS method
2019-10-25 -
SN/T 1723.1-2022 in English
Detection and identification of Globodera rostochiensis (WollenweberSkarbilovich and G.pallida(Stone) Behrans
2022-07-07 -
SN/T 1828.3-2019 in English
Test method of classification for import and export dangerous goods-Part 3: Oxidizing substances
2019-10-25 -
SN/T 3694.14-2013 in English
Determination of perfluorinated alkyl substances in industrial products for export and import - Part 14: Food contact materials - LG-tandem mass spectrometry
2013-11-06
