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Determination of lead, cadmium, chromium in aluminium oxide. X-Ray fluorescence spectrometric method
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Basic data
| Standard ID | SN/T 2780-2011 (SN/T2780-2011) |
| Description (Translated English) | Determination of lead, cadmium, chromium in aluminium oxide. X-Ray fluorescence spectrometric method |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | H12 |
| Classification of International Standard | 71.100.10 |
| Word Count Estimation | 8,817 |
| Date of Issue | 2011-02-25 |
| Date of Implementation | 2011-07-01 |
| Quoted Standard | GB/T 2009; GB/T 6682; GB/T 16597 |
| Regulation (derived from) | ?AQSIQ-Inspection [2011] 90 |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This standard specifies the alumina lead, wavelength dispersive X -ray fluorescence spectrometric method for chromium, cadmium. This method is suitable for alumina lead, cadmium, determination of chromium. Lead, cadmium, chromium concentration ranges were determined 0. O6% ~ 1. 7%. |
SN/T 2780-2011: Determination of lead, cadmium, chromium in aluminium oxide. X-Ray fluorescence spectrometric method
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Determination of lead, cadmium, chromium in aluminium oxide.X-Ray fluorescence spectrometric method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Determination of aluminum oxide of lead, cadmium, chromium
Wavelength dispersive X-ray fluorescence spectrometry
Determinationoflead, cadmium, chromiuminaluminiumoxide-
Issued on. 2011-02-25
2011-07-01 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 Shandong CIQ.
The main drafters of this standard. Xueqiu Hong, Zhang Lei, Wang Yanting, Qu Xiaoxia, Ding Yulong, Li Jing, Ding Shibing.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Determination of aluminum oxide of lead, cadmium, chromium
Wavelength dispersive X-ray fluorescence spectrometry
1 Scope
This method provides for lead, cadmium, chromium wavelength dispersive X-ray fluorescence spectrometric method alumina.
This method is suitable for alumina lead, cadmium and chromium, lead, cadmium, chromium measured concentration ranging from 0.06% to 1.7%.
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 2009 bauxite bulk sampling and sample preparation method
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 16597 metallurgical product analysis X-ray Fluorescence Spectrometry General
3 Method summary
Samples were burned to remove the pre-crystallization of water, the sample is ignited prepared borate glass melt samples, using X-ray fluorescence spectrometry
Analyte measured X-ray fluorescence intensity was measured at baseline background characteristic line near the location of the sample as background subtraction. With
Alumina base material, lead, cadmium, chromium standard solution, prepared using standard samples. Application of the principle of inter-α-factor correction correction element matrix effect correction
Line strength and concentration to do after being fitted by a linear least-squares method. Determination results of samples obtained after the correction of loss on ignition in the original sample
content.
4 Reagents and materials
Unless otherwise stated, use only the gifted class pure reagents and in line with two water GB/T 6682 regulations.
Nitrate 4.1 (ρ1.40g/mL).
4.2 hydrochloride (ρ1.16g/mL ~ 1.19g/mL).
4.3 hydrochloric acid (12). hydrochloric acid (see 4.2) dilution.
4.4 hydrochloric acid (11). hydrochloric acid (see 4.2) dilution.
4.5 Lead (purity ≥99.99%).
4.6 Cadmium (purity ≥99.99%).
4.7 chromium (purity ≥99.99%).
4.8 Lead (Pb) standard solution (10000μg/mL). Weigh accurately 1g metallic lead (see 4.5), transferred to a 100mL beaker,
30mL of water and 20mL of nitric acid (see 4.1), on a hot plate heated to dissolve quantitatively transferred to 100mL volumetric flask with hydrochloric acid (see
4.3) volume.
4.9 Cadmium (Cd) standard solution (10000μg/mL). Weigh accurately 1g metal cadmium (see 4.6), transferred to a 100mL beaker,
20mL hydrochloric acid (see 4.2), on a hot plate heated to dissolve, cooled, and quantitatively transferred to 100mL volumetric flask.
4.10 Chromium (Cr) standard solution (10000μg/mL). Weigh accurately 1g chromium (see 4.7), transferred to a 100mL beaker,
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