YS/T 358.9-2011Methods for chemical analysis of tantalite, colubite concentrate. Part 9: Determination of antimony content. Inductively coupled plasma atomic emission spectrometry (English PDF)

Foreword

YS/T 358 "iron tantalum, niobium, iron ore chemical analysis method" includes 12 parts.

--- Part 1. tantalum, niobium determining the amount of the paper color layer weight method;

--- Part 2. Determination of titanium dioxide content of the double security for DAM spectrophotometry;

--- Part 3. Determination of silicon dioxide content and weight of molybdenum blue spectrophotometric method;

--- Part 4. Determination of tungsten trioxide content of thiocyanate spectrophotometric method;

--- Part 5. uranium content - Inductively coupled plasma atomic emission spectrometry;

--- Part 6. thorium oxide content - Inductively coupled plasma atomic emission spectrometry;

--- Part 7. Determination of iron content by inductively coupled plasma atomic emission spectrometry;

--- Part 8. Determination of the amount of ferrous dichromate method;

--- Part 9. Determination of antimony content by inductively coupled plasma atomic emission spectrometry;

--- Part 10. Determination of tin content potassium iodate titration;

--- Part 11. Determination of the amount of manganese atomic absorption spectrometry;

--- Part 12. Determination of hygroscopic water gravimetric method.

This section YS/T Section 9358 of.

The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.

This section is drafted. Ganzhou Nonferrous Metallurgy Research Institute, Jiujiang Tantalum Niobium limited liability company, Conghua Tantalum-Niobium smelter.

1 Scope

This method specifies iron tantalum, niobium iron ore Determination of antimony content.

This method is suitable for iron, tantalum, niobium determination of antimony content of iron concentrate. Determination range of 0.005% to 0.50%.

2 Method summary

Samples with sulfuric acid - ammonium sulfate decomposition coupled inductor, in acid medium, ionized argon plasma source, direct plasma fat Emission spectroscopy.

3 Reagents

3.1 ammonium sulfate.

3.2 sulfate (rho1.84g/mL).

3.3 hydrochloride (rho1.19g/mL).

3.4 HCl wash (149).

3.5 Antimony standard stock solution. Weigh 0.1000g spectrum metal antimony [w (Sb) >=99.95%] in 250mL beaker, add 20mL Sulfuric acid (3.2), set on a hot plate heated to complete dissolution, cooled under continuous stirring is slowly added 20mL of water, dissolved by heating, cooled and transferred to 1000mL flask with hydrochloric acid (19) was diluted to the mark, mix, and this solution is equivalent to 0.1mg 1mL antimony.

3.6 Argon w (Ar) >=99.99%.

4 Instrument

Inductively coupled plasma atomic emission spectroscopy. Resolution 5 Sample

5.1 Sample size of less than 0.074mm.

5.2 sample was pretreated at 105 °C ~ 110 °C drying 2h, placed in a desiccator to cool to room temperature.

Step 6 Analysis