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SN/T 3510-2013 English PDF (SNT3510-2013)

SN/T 3510-2013 English PDF (SNT3510-2013)

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SN/T 3510-2013: Determination of arsenic, cadmium, copper, nickel, lead, zinc in lead ore for import and export. Inductively coupled plasma atomic emission spectrometric method
This standard specifies the method for the determination of arsenic, cadmium, copper, nickel, lead, zinc in lead ores for import and export by inductively coupled plasma atomic emission spectrometry.
SN/T 3510-2013
SN
ENTRY and EXIT INSPECTION and QUARANTINE STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
Determination of arsenic, cadmium, copper, nickel,
lead, zinc in lead ore for import and export -
Inductively couple plasma atomic emission
spectrometric method
ISSUED ON: MARCH 01, 2013
IMPLEMENTED ON: SEPTEMBER 16, 2013
Issued by: General Administration of Quality Supervision Inspection and Quarantine of PRC
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Method summary ... 5
4 Reagent ... 5
5 Instrument ... 5
6 Specimen ... 5
7 Analytical procedures ... 6
8 Calculation of analytical results ... 6
9 Precision ... 7
Appendix A (Normative) Standard curve series... 8
Appendix B) (Informative) Instrument analysis conditions and element detection limits ... 9
Determination of arsenic, cadmium, copper, nickel,
lead, zinc in lead ore for import and export -
Inductively couple plasma atomic emission
spectrometric method
1 Scope
This standard specifies the method for the determination of arsenic, cadmium, copper, nickel, lead, zinc in lead ores for import and export by inductively coupled plasma atomic emission spectrometry.
This standard applies to the determination of arsenic, cadmium, copper, nickel, lead, zinc content in lead ores for import and export. The measurement range of each element is as shown in Table 1.
2 Normative references
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard.
GB/T 602 Chemical reagent - Preparations of standard solutions for impurity GB/T 6379.2 Accuracy (trueness and precision) of measurement methods
and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
GB/T 6682 Water for analytical laboratory use - Specification and test
methods
3 Method summary
The sample was dissolved by acid dissolution method. The element emission intensity was measured by plasma emission spectrometer. The content of
arsenic, cadmium, copper, nickel, lead and zinc in lead ore was determined quantitatively according to the standard curve method.
4 Reagent
Unless otherwise specified, the reagents used are all analytical reagents and above; the water is grade-2 water that meets the requirements of GB/T 6682. 4.1 Hydrochloric acid (ρ = 1.19 g/mL).
4.2 Nitric acid (ρ = 1.42 g/mL).
4.3 Nitric acid (1 + 9).
4.4 Lead standard stock solution: Accurately weigh 8.00 g of lead nitrate; use 400 mL of nitric acid (4.3) to dissolve it; transfer it into a 1000 mL volumetric flask; dilute to the mark; 1 mL of this solution contains 5 mg of lead. 4.5 Single element standard stock solution: The standard solution of each element is prepared according to the method of GB/T 602 or a single standard solution standard material is used directly. The mass concentration of the single standard solution of lead is 5000 μg/mL; the mass concentration of the single standard solution of cadmium and nickel is 100 μg/mL; the mass concentration of the single standard solution of other elements is 1000 μg/mL.
4.6 Mixed standard solution: Pipette each element standard stock solution (4.5) into a 100 mL volumetric flask; use nitric acid (4.3) to dilute it to the mark; mix well. The amount of each tested element in 1 mL of this solution is as shown in Appendix A.
5 Instrument
5.1 Inductively coupled plasma atomic emission spectrometer.
5.2 Analytical balance, which has a sensitivity of 0.1 mg.
6 Specimen
The specimen is passed through a 149 μm screen and dried in an oven at 60 °C for 4 hours; then placed in a desiccator to cool to room temperature to prepare
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