SN/T 2263-2017 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2263-2017	319	Add to Cart	3 days	Determination of arsenic, bromine and iodine in coal and coke - Inductively coupled plasma mass spectrometry(ICP-MS)	Obsolete
SN/T 2263-2009	319	Add to Cart	3 days	Determination of arsenic, bromine and iodine in coal and coke. Inductively coupled plasma mass spectrometry(ICP-MS)	Obsolete

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Basic data

Standard ID: SN/T 2263-2017 (SN/T2263-2017)
Description (Translated English): Determination of arsenic, bromine and iodine in coal and coke - Inductively coupled plasma mass spectrometry(ICP-MS)
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: D21
Classification of International Standard: 73.040
Word Count Estimation: 8,822
Date of Issue: 2017-07-21
Date of Implementation: 2018-03-01
Older Standard (superseded by this standard): SN/T 2263-2009
Quoted Standard: GB/T 474; GB/T 19494.2
Regulation (derived from): National Quality Inspection (2017) No. 337
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies methods for the determination of arsenic, bromine and iodine in coal or coke samples by inductively coupled plasma mass spectrometry. This standard applies to the determination of arsenic, bromine and iodine in coal or coke by inductively coupled plasma mass spectrometry. The measurement range is: arsenic is 0.30mg/kg~200mg/kg; bromine is 50mg/kg~300mg/kg; iodine is 10mg/kg~200mg/kg.

SN/T 2263-2017: Determination of arsenic, bromine and iodine in coal and coke - Inductively coupled plasma mass spectrometry(ICP-MS)

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Determination of arsenic, bromine and iodine in coal and coke - Inductively coupled plasma mass spectrometry (ICP-MS) People's Republic of China entry and exit inspection and quarantine industry standards Replace SN/T 2263-2009 Determination of arsenic, bromine and iodine in coal or coke Inductively coupled plasma mass spectrometry Released on.2017-07-21 2018-03-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces SN/T 2263-2009 "Inductively Coupled Plasma Mass Spectrometry for the Determination of Arsenic, Bromine and Iodine in Coal or Coke". versus Compared with SN/T 2263-2009, the main technical changes except editorial changes are as follows. --- Redefined the measurement range of bromine and iodine in the standard; --- Modified "4 reagents and materials" and added "4.4 ammonia"; --- Modified "4 reagents and materials", the cleaning solution was modified to "take 5mL ammonia (4.4), placed in a 500mL plastic volumetric flask, add water Mix" --- Modified "5 instruments" and added "5.4 plastic volumetric flasks, 100mL"; --- Revised "7.4 standard solution working curve drawing", the standard solution concentration was modified to "standard 1.15, 30, 15, 10; standard 2.30, 60, 30, 10; standard 3. 100,.200, 100, 10". This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Shanghai Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Zhang Linlin, Xu Jie, Wang Bing, Zhou Haiming, Zhu Zhixiu, Sun Mingxing. The previous versions of the standards replaced by this standard are. ---SN/T 2263-2009. Determination of arsenic, bromine and iodine in coal or coke Inductively coupled plasma mass spectrometry

1 Scope

This standard specifies methods for the determination of arsenic, bromine and iodine in coal or coke samples by inductively coupled plasma mass spectrometry. This standard applies to the determination of arsenic, bromine, and iodine in coal or coke by inductively coupled plasma mass spectrometry. Its measurement range. arsenic 0.30mg/kg~200mg/kg; bromine is 50mg/kg~300mg/kg; iodine is 10mg/kg~200mg/kg.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. Preparation method of GB/T 474 coal sample GB/T 19494.2 Mechanized sampling of coal - Part 2. Preparation of coal

3 method summary

The sample is pre-digested by nitric acid, then subjected to high temperature pressure microwave sealing digestion---mixed acid solution treatment, and then stabilized by the oxidant, diluted After constant volume determination, indium was used as an internal standard for ICP-MS determination. The quantitative relationship between mass-to-charge ratio intensity and its elemental concentration was used to determine arsenic, bromine and iodine in the sample. content.

4 reagents and materials

Unless otherwise stated, this standard uses only analytically pure and above reagents, water is double distilled water or water of comparable purity. If there is a A sub-boiling distilled water can be used. 4.1 Nitric acid (excellent grade, ρ = 1.42g/mL). 4.2 Hydrofluoric acid (analytically pure, HF ≥ 40%). 4.3 Hydrogen peroxide (analytically pure, H2O2 ≥ 30%). 4.4 Ammonia. 4.5 Boric acid. 4.6 Nitric acid (1 1). 4.7 Nitric acid (1/9). 4.8 Tetrafluoroboric acid, 50% (mass fraction). 4.9 sodium persulfate, 10% (mass fraction). Accurately weigh 10 g of sodium persulfate dissolved in 90 mL of water in a beaker and store in a brown reagent bottle. In the middle, the current use is now available. 4.10 Standard storage solution of arsenic. The mass concentration of arsenic is 1000 μg/mL. Direct purchase of a standard substance certificate and within the validity period Elemental standard solution. 4.11 Bromine element standard stock solution. The mass concentration of bromine is 1000μg/mL. Direct purchase of a standard substance certificate and within the validity period Elemental standard solution. ......

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