XB/T 601.2-2008Chemical analysis methods of lanthanum boride - Determination of Fe, Ca, Mg, Cr, Mn, Cu, Co content - Inductively coupled plasma atomic emission spectrographic method (English PDF)
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Issued by
National Development and Reform Commission of the People's Republic of China
Level / Type
National · Recommended
Issue date
February 1, 2008
Implementation date
July 1, 2008
Scope
XB/T 601.2-2008 (Chemical analysis methods of lanthanum boride - Determination of Fe, Ca, Mg, Cr, Mn, Cu, Co content - Inductively coupled plasma atomic emission spectrographic method) is available as an English-translated PDF.
XB/T 601.2-2008 — This section specifies the determination method of iron, calcium, magnesium, chromium, manganese and copper in lanthanum hexaboride. This section applies to the determination of iron, calcium, magnesium, chromium, manganese, and copper content in lanthanum hexaboride.
The measurement range is shown in Table 1. Table 1 Measuring range of measuring elements (mass fraction)/% Iron 0.0050~0.50 Calcium 0.0050~0.30 Magnesium 0.0005~0.10 Chromium 0.0010~0.10 Manganese 0.0010~0.10 Copper 0.0010~0.10
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Document preview — XB/T 601.2-2008
National Standard of the People's Republic of China
- ICS
- 77.120.99
- Classification
- H 65
- Replacing
- XB/T 601.2-1993; XB/T 601.3-1993; XB/T 601.4-1993; XB/T 601.5-1993; XB/T 601.7-1993; XB/T 601.8-1993
Issued by: National Development and Reform Commission of the People's Republic of China
Contents
- Foreword
- 1 Scope
- 2 Principles of the method
- 3 Reagents
- 3.3 Argon ( >99.99%)
- 3.4 Hydroxylamine hydrochloride. excellent grade pure
Foreword
This standard is divided into the following 5 parts.
XB/T 601.1-2008 Methods for chemical analysis of lanthanum hexaboride. Determination of boron content. Acid-base titration XB/T 601.2-2008 Methods for chemical analysis of lanthanum hexaboride Determination of iron, calcium, magnesium, chromium, manganese, and copper content inductively coupled plasma Emission spectroscopy XB/T 601.3-2008 Methods for chemical analysis of lanthanum hexaboride-Determination of tungsten content-Inductively coupled plasma emission spectrometry XB/T 601.4-2008 Methods for chemical analysis of lanthanum hexaboride. Determination of carbon content. High frequency induction combustion infrared absorption method XB/T 601.5-2008 Methods for chemical analysis of lanthanum hexaboride-Determination of acid-soluble silicon content-Silicon molybdenum blue spectrophotometric method this part is part 2.This part is based on XB/T 601.2-1993 "Methods for chemical analysis of lanthanum hexaboride flame atomic absorption spectrometry" Method for the determination of calcium content", XB/T 601.3-1993 "Methods for chemical analysis of lanthanum hexaboride flame atomic absorption spectrometry for the determination of magnesium content", XB/T 601.4-1993 "Methods for chemical analysis of lanthanum hexaboride for the determination of copper content by flame atomic absorption spectrometry", XB/T 601.5-1993 "6 Methods for chemical analysis of lanthanum boride. Determination of manganese content by flame atomic absorption spectrometry", XB/T 601.7-1993 "Methods for chemical analysis of lanthanum hexaboride Method 1,10-phenanthroline spectrophotometric method for the determination of iron content" and XB/T 601.8-1993 "Methods for chemical analysis of lanthanum hexaboride diphenyl semicarbazide Consolidated revision of "Spectrophotometric Determination of Chromium Content". This part is compatible with XB/T 601.2~601.5-1993, XB/T 601.7~601.8-1993 the main changes are as follows.
---Inductively coupled plasma emission spectrometry is used;
--- Added precision (repeatability) clause.
This part was proposed and managed by the National Rare Earth Standardization Technical Committee.
1 Scope
This section specifies the determination method of iron, calcium, magnesium, chromium, manganese and copper in lanthanum hexaboride.
This section applies to the determination of iron, calcium, magnesium, chromium, manganese, and copper content in lanthanum hexaboride. The measurement range is shown in Table 1.
Table 1
Measuring range of measuring elements (mass fraction)/% Iron 0.0050~0.50 Calcium 0.0050~0.30 Magnesium 0.0005~0.10 Chromium 0.0010~0.10 Manganese 0.0010~0.10 Copper 0.0010~0.10
2 Principles of the method
The sample was dissolved in nitric acid and directly excited by an argon plasma-based light source in a dilute nitric acid medium for spectrometry. Join the law school by standard the interference of the positive matrix to the measurement.
3 Reagents
3.1 Nitric acid (1+1), pure superior grade.
3.2 Hydrochloric acid (1+1), excellent grade pure.
3.3 Argon ( >99.99%)
3.4 Hydroxylamine hydrochloride. excellent grade pure
3.5 Chromium standard stock solution. Weigh 2.829g of potassium dichromate (reference reagent) baked at 110°C for 1 hour in a.200ml beaker and add 50mL nitric acid (3.1) is heated to dissolve; cooled to room temperature, transferred to a 1000mL volumetric flask, diluted with water to the mark, and mixed. This solution 1ml contains 1mg chromium. Dilute this solution with HNO3 (5+95) into 1mL chromium standard solutions containing 100µg, 10µg and 1µg respectively.
3.6 Manganese standard stock solution. Weigh 1.5825g of manganese dioxide ( >99.999%) baked at 110°C for 1h in a.200ml beaker and add 50ml hydrochloric acid (3.2), add a small amount of hydroxylamine hydrochloride (3.4), heat to dissolve, cool to room temperature, transfer to 1000ml volumetric flask, dilute with water to the mark, mix well. This solution 1mL contains 1mg manganese. Dilute this solution with HNO3 (5+95) into 1mL containing 100µg and 10µg respectively and 1µg of manganese standard solution.
3.7 Iron standard stock solution. pipette 1.4298g of iron trioxide ( >99.999%) baked at 110°C for 1h into a.200ml beaker, Add 50mL hydrochloric acid (3.2) to heat to dissolve, cool to room temperature, transfer to a 1000mL volumetric flask, dilute to the mark with water, and mix. This solution 1ml contains 1mg iron. This solution was diluted with HNO3 (5+95) into 1mL of iron standard solutions containing 100µg, 10µg and 1µg respectively.
3.8 Copper standard storage solution. Pipette 1.2518g of copper oxide ( >99.999%) baked at 110°C for 1h into a.200ml beaker, add 50mL nitric acid (3.1) is heated to dissolve, cooled to room temperature, transferred to a 1000mL volumetric flask, diluted with water to the mark, and mixed. This solution 1mL Containing 1mg copper, this solution was diluted with HNO3 (5+95) into 1mL copper standard solutions containing 100µg, 10µg and 1µg respectively.
XB/T 601.2-2008
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.
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Related Standards
XB/T 601.1-2008 — Chemical analysis methods of lanthanum boride - Determination of boron content - Acid alkali titration method
XB/T 601.3-2008 — Chemical analysis methods of lanthanum boride - Determination of tungsten content - Inductively coupled plasma atomic emission spectrographic method
XB/T 601.4-2008 — Chemical analysis methods of lanthanum boride - Determination of carbon content - High frequency induced combustion infrared ray absorbs method
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