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SN/T 2680-2010: Determination of arsenic, mercury, cadmium, lead, bismuth in iron ores. Atomic fluorescence spectrometric method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2680-2010 | English | 289 |
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Determination of arsenic, mercury, cadmium, lead, bismuth in iron ores. Atomic fluorescence spectrometric method
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SN/T 2680-2010
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Basic data | Standard ID | SN/T 2680-2010 (SN/T2680-2010) | | Description (Translated English) | Determination of arsenic, mercury, cadmium, lead, bismuth in iron ores. Atomic fluorescence spectrometric method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | D31 | | Classification of International Standard | 73.060.10 | | Word Count Estimation | 11,193 | | Date of Issue | 2010-11-01 | | Date of Implementation | 2011-05-01 | | Quoted Standard | GB/T 6379; GB/T 6730.1; GB/T 8170; GB/T 10322.1; JJG 939 | | Regulation (derived from) | National Quality Inspection (2010) 582 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the determination of arsenic in iron ore, mercury, cadmium, lead, bismuth content by atomic fluorescence spectroscopy. This standard applies to the determination of natural iron ore, iron ore concentrate, and agglomeration and sintering products of arsenic, mercury, cadmium, lead, bismuth content. | SN/T 2680-2010: Determination of arsenic, mercury, cadmium, lead, bismuth in iron ores. Atomic fluorescence spectrometric method
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Determination of arsenic, mercury, cadmium, lead, bismuth in iron ores.Atomic fluorescence spectrometric method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Iron ore of arsenic, mercury, cadmium, lead, bismuth content
Atomic Fluorescence Spectrometry
Determinationofarsenic, mercury, cadmium, lead, bismuthin
Issued on. 2010-11-01
2011-05-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Ningbo Exit Inspection and Quarantine, China Certification & Inspection Group Co., Ltd. Ningbo.
The main drafters of this standard. Kangji Tao, pay slowly, should pine, Rongde Fu, Liu clear water.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Iron ore of arsenic, mercury, cadmium, lead, bismuth content
Atomic Fluorescence Spectrometry
1 Scope
This standard specifies the method of atomic fluorescence spectrometry determination of iron ore of arsenic, mercury, cadmium, lead, bismuth content.
This standard applies to the determination of the natural ore, iron ore and briquetting and sintering products of arsenic, mercury, cadmium, lead, bismuth content.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 6379 measurement methods and results of Accuracy (trueness and precision)
GB/T 6730.1 chemical analysis of iron pre-drying of the sample prepared by
GB/T 8170 numerical rounding rules
GB/T 10322.1 iron ore sampling and sample preparation methods
Fluorometer national verification procedures JJG939 non-dispersive atomic
3 Method summary
A sample was dissolved with acid. With a reducing agent in the test solution of As (Ⅴ) pre-reduction of As (Ⅲ), Cd (Ⅳ) pre-reduction of Cd (Ⅱ), lead, mercury,
Bismuth without pre-reduction, with a masking agent masking test solution in iron, at a certain acidity, test solution and potassium borohydride solution by hydride generator
Hydrides, with the carrier gas into the quartz tube atomizer, wherein the fluorescent intensity was measured at wavelengths characteristic of each element, the measured fluorescence test solution
The intensity of fluorescence intensity compared with the standard solution, the test solution obtained in the content of each element.
4 Reagents
Unless otherwise stated, use only confirmed in the analysis of analytical grade reagents and deionized water or equivalent purity.
4.1 hydrochloric acid (ρ1.16g/mL ~ 1.19g/mL), pure class distinctions.
4.2 nitrate (ρ1.42g/mL), pure class distinctions.
4.3 Hydrofluoric acid (ρ1.15g/mL ~ 1.18g/mL).
4.4 perchloric acid (HClO4 content of 70% to 72%), pure class distinctions.
4.5 hydrochloride (11). hydrochloric acid (4.1) was diluted.
4.6 hydrochloride (1.5 98.5). hydrochloric acid (4.1) was diluted.
4.7 hydrochloric acid (298). hydrochloric acid (4.1) was diluted.
4.8 nitric acid (20% volume fraction). nitric acid (4.2) or diluted nitric acid diluted with an analytically pure.
4.9 solution of potassium borohydride (2g/L). Weigh 1.0g potassium borohydride (greater than 95% purity) was dissolved in 50mL containing 0.25g of sodium hydroxide solution
Beaker liquid, transfer to a 500mL volumetric flask, water volume, the use of the preparation.
4.10 solution of potassium borohydride (20g/L). Weigh 10g potassium borohydride (purity greater than 95%) was dissolved in 50mL solution containing 1.0g of sodium hydroxide
Beaker liquid, transfer to a 500mL volumetric flask, water volume, the use of the preparation.
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