YS/T 820.10-2012 PDF in English
YS/T 820.10-2012 (YS/T820.10-2012, YST 820.10-2012, YST820.10-2012)
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Methods for chemical analysis of laterite nickel ores. Part 10: Determination of calcium, cobalt, copper, magnesium, manganese, nickel, phosphate and zinc content. Inductively coupled plasma atomic emission spectrometry
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Standards related to (historical): YS/T 820.10-2012
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YS/T 820.10-2012: PDF in English (YST 820.10-2012) YS/T 820.10-2012
YS
NONFERROUS METAL INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 73.060
D 04
Methods for chemical analysis of laterite nickel ores -
Part 10. Determination of calcium, cobalt, copper,
magnesium, manganese, nickel, phosphate and zinc
content - Inductively coupled plasma atomic emission
spectrometry
ISSUED ON. NOVEMBER 07, 2012
IMPLEMENTED ON. MARCH 01, 2013
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative references ... 6
3 Summary of methods ... 7
4 Reagents ... 7
5 Instruments ... 9
6 Specimen ... 10
7 Analytical procedures ... 10
8 Calculation of analytical results ... 11
9 Precision ... 12
10 Test report ... 13
Foreword
This part was drafted in accordance with the rules given in GB/T 1.1-2009.
YS/T 820-2012 “Methods for chemical analysis of laterite nickel ores” is divided
into 26 parts.
- Part 1. Determination of nickel content - Flame atomic absorption
spectrometry;
- Part 2. Determination of nickel content - Dimetylglyoxime
spectrophotometry;
- Part 3. Determination of total iron content - Potassium dichromate titration;
- Part 4. Determination of phosphorus content - Phosphorus molybdenum
blue spectrophotometry;
- Part 5. Determination of cobalt content - Flame atomic absorption
spectrometry;
- Part 6. Determination of copper content - Flame atomic absorption
spectrometry;
- Part 7. Determination of calcium and magnesium content - Flame atomic
absorption spectrometry;
- Part 8. Determination of silica content - Potassium silicafluoride titrimetric
method;
- Part 9. Determination of scandium and cadmium contents - Inductively
coupled plasma mass spectrometry;
- Part 10. Determination of calcium, cobalt, copper, magnesium, manganese,
nickel, phosphate and zinc content - Inductively coupled plasma atomic
emission spectrometry;
- Part 11. Determination of fluorine and chlorine contents - Ion
chromatography;
- Part 12. Determination of manganese content - Flame atomic absorption
spectrometry;
- Part 13. Determination of lead content - Flame atomic absorption
spectrometry;
- Part 14. Determination of the zinc content - Flame atomic absorption
spectrometry;
Methods for chemical analysis of laterite nickel ores -
Part 10. Determination of calcium, cobalt, copper,
magnesium, manganese, nickel, phosphate and zinc
content - Inductively coupled plasma atomic emission
spectrometry
1 Scope
This part of YS/T 820 specifies the method for determining calcium, cobalt,
copper, magnesium, manganese, nickel, phosphate and zinc content in laterite
nickel ores.
This part applies to the simultaneous determination of calcium, cobalt, copper,
magnesium, manganese, nickel, phosphorus and zinc contents in laterite nickel
ores. The range of determination is as shown in Table 1.
Table 1 -- Range of determination (mass fraction)
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.
YS/T 820.24-2012 Methods for chemical analysis of laterite nickel ores - Part
24. Determination hygroscopic moisture content - Gravimetric method
Element Range of determination/%
99.95%); PLACE it in a 300 mL beaker; COVER the watch glass; slowly ADD
40 mL of nitric acid (4.4) to dissolve it at low temperature; DRIVE out the
nitrogen oxide; REMOVE and COOL it to room temperature; USE water to rinse
the watch glass and beaker’s wall; TRANSFER it into a 1000 mL volumetric
flask; USE water to dilute it to the mark; MIX it uniformly. 1 mL of this solution
contains 0.2 mg of copper.
4.10 Magnesium standard stock solution. WEIGH 0.8290 g of magnesium oxide
(wMgO ≥ 99.99%, which is burnt in advance at 800 °C ± 50 °C to constant weight
and cooled in a desiccator to room temperature); PLACE it in a 300 mL beaker;
COVER the watch glass; slowly ADD 30 mL of hydrochloric acid (4.2);
DISSOLVE it at low temperature; REMOVE and COOL it to room temperature;
USE water to rinse the watch glass and beaker’s wall; TRANSFER it into a 1000
mL volumetric flask; USE water to dilute it to the mark; MIX it uniformly. 1 mL of
this solution contains 0.5 mg of magnesium.
4.11 Manganese standard stock solution. WEIGH 1.0000 g of metal
manganese (wMn ≥ 99.95%); PLACE it in a 300 mL beaker; COVER the watch
glass; slowly ADD 40 mL of nitric acid (4.4) to dissolve it at low temperature;
DRIVE out the nitrogen oxide; REMOVE and COOL it to room temperature;
USE water to rinse the watch glass and beaker’s wall; TRANSFER it into a 1000
mL volumetric flask; USE water to dilute it to the mark; MIX it uniformly. 1 mL of
this solution contains 1 mg of manganese.
4.12 Nickel standard stock solution. WEIGH 1.0000 g of metallic nickel (wNi ≥
99.95%); PLACE it in a 300 mL beaker; COVER the watch glass; slowly ADD
40 mL of nitric acid (4.4) to dissolve it at low temperature; DRIVE out the
nitrogen oxide; REMOVE and COOL it to room temperature; USE water to rinse
the watch glass and beaker’s wall; TRANSFER it into a 1000 mL volumetric
flask; USE water to dilute it to the mark; MIX it uniformly. 1 mL of this solution
contains 1 mg of nickel.
4.13 Phosphorus standard stock solution. WEIGH 0.4390 g of potassium
dihydrogen phosphate (reference reagent); DISSOLVE it in water; TRANSFER
it into a 1000 mL volumetric flask; USE water to dilute it to the mark; MIX it
uniformly. 1 mL of this solution contains 0.1 mg of phosphorus.
4.14 Zinc standard stock solution. WEIGH 0.6224 g of zinc oxide (wZnO ≥
99.95%, which is burnt in advance at 800 °C ± 50 °C to constant weight and
cooled in a desiccator to room temperature); PLACE it in a 300 mL beaker; USE
a small amount of water to wet it; COVER the watch glass; slowly ADD 30 mL
of hydrochloric acid (4.2); DISSOLVE it at low temperature; REMOVE and
COOL it to room temperature; USE water to rinse the watch glass and beaker’s
wall; TRANSFER it into a 1000 mL volumetric flask; USE water to dilute it to the
mark; MIX it uniformly. 1 mL of this solution contains 0.5 mg of zinc.
ADD 20 mL of hydrochloric acid (4.1) to dissolve it at low temperature; then
ADD 10 mL of nitric acid (4.3), 10 mL of hydrofluoric acid (4.5), 5 mL of
perchloric acid (4.6); HEAT to decompose it until the white smoke is exhausted;
TAKE it off and slightly COOL it; ADD 10 mL of hydrochloric acid (4.1); USE
water to rinse the beaker’s wall; HEAT to dissolve the salt; REMOVE and COOL
it; USE water to rinse the beaker’s wall; BOIL to dissolve it; USE the medium-
speed filter paper to filter it into a 100 mL volumetric flask; USE water to dilute
it to the mark; MIX it uniformly.
7.4.2 Respectively, TAKE the test solution (7.4.1) according to Table 3; PLACE
it in a 100 mL volumetric flask; ADD 5 mL of hydrochloric acid (4.1); USE water
to dilute it to the mark; MIX it uniformly.
Table 3 -- Volume of test solution taken
Mass fraction of determined element/% Volume of test solution taken/mL
0.003 ~ 0.25 -
> 0.25 ~ 1.00 20.00
> 1.00 5.00
7.4.3 PLACE the test solution (7.4.1), (7.4.2) on the inductively coupled plasma
spectrometer; DETERMINE the intensity of emitted light of the test solution and
the accompanied blank solution (7.3). The instrument calculates the mass
fraction of the determined element in accordance with the working curve.
7.5 Drawing of the working curve
On the inductively coupled plasma-atomic emission spectrometer, USE the
series standard blank solution (4.17), mixed standard solution B (4.16), mixed
standard solution A (4.15) to determine the intensity of emitted light of calcium,
cobalt, copper, magnesium, manganese, nickel and phosphorus, zinc.
Respectively USE the mass fraction of the determined elements as the
abscissa, the intensity of emitted light as the ordinate, the instrument
automatically draws the working curve.
8 Calculation of analytical results
The amount of the determined element is calculated by the mass fraction wx of
the determined element, the value is expressed in %, which is calculated
according to formula (1) and formula (2).
Where.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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