SN/T 5249-2020 in English

VALID

Determination of iron|| manganese|| copper|| aluminum|| titanium|| lead|| chromium|| calcium|| magnesium|| zinc|| potassium|| sodium content in precipitated hydrated silica by inductively coupled plasma atomic emission spectrometry

Issued on:2020-08-27
Implemented on:2021-03-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $150.00
$146.00

Standard No:	SN/T 5249-2020
Document status:	VALID
Title in English:	Determination of iron\|\| manganese\|\| copper\|\| aluminum\|\| titanium\|\| lead\|\| chromium\|\| calcium\|\| magnesium\|\| zinc\|\| potassium\|\| sodium content in precipitated hydrated silica by inductively coupled plasma atomic emission spectrometry
Title in Chinese:	沉淀水合二氧化硅中铁、锰、铜、铝、钛、铅、铬、钙、镁、锌、钾、钠含量的测定电感耦合等离子体原子发射光谱法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2020-08-27
Implemented on:	2021-03-01
Professional Classification:	SN-Import&Export Inspection
Related Topics:	atomic emission spectrometry Determination of Sodium, Potassium and Vanadium in Coal Tar and Anthracene Oil by Inductively Coupled Plasma-Atomic Emission Spectrometry Determination of Sodium, Calcium, Zinc and Phosphorus Ashing Alkali Fusion-Inductively Coupled Plasma Emission Spectrometry Coupled inductor atomic coupling Silica inductively coupled Inductively Coupled Plasma-Atomic Emission Spectrometry Calcium Magnesium and Sodium Potassium plasma atomic emission spectrometry Determination of manganese and chromium content by atomic emission Coupled inductor Opposite atom of potassium ion Zinc ion content in water atomic + sodium ion content copper ion iron Atomic Emission Inductively Coupled Plasma Inductively Coupled Plasma-Atomic Emission Spectrometry What is the content of sodium and magnesium ions in the water quality lead calcium Inductively Coupled Plasma-Atomic Emission Spectrometry "Atomic Emission Spectroscopy" Coupled atoms Chromium ion content in water Ferromanganese Inductively Coupled Plasma Atomic Emission Spectroscopy Atomization of copper ions Determination of Calcium and Magnesium in Water by Plasma Emission Spectrometry Calibration of inductively coupled plasma optical emission spectrometer The precipitation method in chemistry is Detection of Silica in Water Ion Chromatography Calibration of Inductively Coupled Plasma Atomic Emission Spectrometer Chromium ion content in reservoir Characterization method for measuring the ion concentration of dissolved potassium, sodium and magnesium in liquids Inductively Coupled Plasma Spectrometer Calibration Method for detecting divalent manganese ions in water Determination of divalent copper ions

Introduction

Analysis of the core content of the standard

Technical elements	Requirements of this standard	Comparison of conventional methods
Sample pretreatment	Hydrofluoric acid-perchloric acid digestion system	Conventional acid dissolution method
Detection limit range	0.1-12,500 mg/kg	Usually 50-5,000 mg/kg
Precision control	8 laboratory validation data	General 3 laboratory data

Key Technical Points

1. Sample Pretreatment Specifications

Use Platinum crucible for digestion treatment, please note:

The amount of hydrofluoric acid should be strictly controlled within 10mL
The silicon element should be completely driven out during the fuming stage of perchloric acid
A plastic volumetric flask should be used for final volume determination

2. Instrument Parameter Optimization

Key parameters of ICP-AES recommended by the standard:

RF power: 1,000W
Observation height: 15mm
Integration time: 3 seconds

Implementation Suggestions

Key Quality Control Points

Each batch of samples must have a process blank
Correlation coefficient of the calibration curve ≥ 0.999
Use the element analysis wavelength recommended in the standard appendix

Extended application of the method

This method can be applied to the following after appropriate adjustments:

Detection of impurities in silicone rubber products
Quality control of silicon dioxide for cosmetics
Purity analysis of silicon in food additives

More samples: QC/T 942-2021 JJG 21-2008 GB 50021-2001(2009)

Sample only — not a preview of SN/T 5249-2020

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