GB/T 24875-2010 English PDF

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GB/T 24875-2010: Determination of lead, cadmium, chromium, mercury contents in animal manure -- Inductively coupled plasma mass spectrometry method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24875-2010	139	Add to Cart	3 days	Determination of lead, cadmium, chromium, mercury contents in animal manure -- Inductively coupled plasma mass spectrometry method	Valid

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Basic data

Standard ID: GB/T 24875-2010 (GB/T24875-2010)
Description (Translated English): Determination of lead, cadmium, chromium, mercury contents in animal manure -- Inductively coupled plasma mass spectrometry method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B40
Classification of International Standard: 65.020
Word Count Estimation: 6,631
Date of Issue: 2010-06-30
Date of Implementation: 2011-01-01
Quoted Standard: GB/T 6682
Regulation (derived from): National Standard Approval Announcement 2010 No.2 (Total No.157)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the manure lead (Pb), cadmium (Cd), chromium (Cr), mercury (Hg) inductively coupled plasma mass spectrometry (ICP-MS) determination. This standard applies to manure samples Pb, Cd, Cr, determination of Hg content.

GB/T 24875-2010: Determination of lead, cadmium, chromium, mercury contents in animal manure -- Inductively coupled plasma mass spectrometry method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of lead, cadmium, chromium, mercury contents in animal manure. Inductively coupled plasma mass spectrometry method ICS 65.020 B40 National Standards of People's Republic of China Determination of manures lead, cadmium, chromium, mercury Inductively Coupled Plasma Mass Spectrometry Issued on. 2010-06-30 2011-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Appendix A of this standard is an informative annex. The standard proposed by the People's Republic of China Ministry of Agriculture. This standard by the National Standardization Technical Committee of animal husbandry. This standard was drafted. Shandong Province Livestock Environmental Quality Monitoring Center. The main drafters of this standard. Yu Ming war, Liuxue Jiang, Li Junling, Yang Zhiguo, Zhao Jinyi, Li Bin. Determination of manures lead, cadmium, chromium, mercury Inductively Coupled Plasma Mass Spectrometry

1 Scope

This standard specifies the manure of lead (Pb), cadmium (Cd), chromium (Cr), mercury (Hg) inductively coupled plasma mass spectrometry (ICP-MS) measurement Setting Method. This standard applies to the determination of Pb, Cd, Cr, Hg content of the manure sample. The quantitative limits. Pb, Cd, Cr, Hg of 0.1mg/kg.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. Laboratory use specifications and test methods GB/T 6682 Analysis

3 PRINCIPLE OF THE METHOD

The samples were microwave digestion, the sample solution introduced into the plasma mass spectrometer. For certain measured ion mass to charge ratio, mass signal in response to the intake Proportional to the number of ions into the mass spectrometer by measuring the mass of the count signal to determine the concentration of elements in the sample. Using the standard curve method count Operators element content.

4 Reagents and materials

Unless otherwise indicated, used in the analysis confirmed only for the gifted class pure reagents, laboratory water in line with GB/T 6682 in a water Provisions. Nitrate 4.1. ρ (HNO3) = 65%. 4.2 nitric acid solution. nitric acid (4.1) + water = 60 + 5. 4.3 standard stock solution. Hg using a commercially available certified single-element standard solution, Pb, Cd, Cr directly using a commercially available certified ICP-MS multi-dedicated Standard solution or using a commercially available certified single-element standard solution. 4.4 standard solution. take the right amount of standard stock solution for each single standard or standard stock solution (4.3), (4.2) stepwise diluted nitric acid solution To the appropriate concentration, formulated in the following mixed standard working solution concentration. Pb, Cd, Cr was 1.0μg/mL, Hg was 0.5μg/mL. Present With the existing service. 4.5 Mixed-line internal standard solution. scandium (Sc), indium (In), bismuth (Bi) at a concentration of 1.0μg/mL, nitric acid solution (4.2) media. 4.6 MS tuning solution. self-tuning instrument liquid. 5. Apparatus 5.1 Inductively coupled plasma mass spectrometry (ICP-MS). 5.2 microwave digestion system with high temperature high pressure digestion tank. 5.3 ultra-pure water system. 5.4 Electronic balance. a sense of the amount of 0.001g. 5.5 purity argon gas. purity of not less than 99.99%. ......

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