YS/T 1028.5-2015Methods for chemical analysis of lithium iron phosphate. Part 5: Determination of calcium, magnesium, zinc, copper, lead, chromium, sodium, aluminium, nickel, cobalt, manganese content. Inductively coupled plasma atomic emission spectrometry (English PDF)

Foreword

YS/T 1028 Methods for chemical analysis of lithium iron phosphate consists of 5 parts.

-- Part 1.Determination of total iron content - Titanium trichloride reduction

potassium dichromate titration methods;

-- Part 2.Determination of lithium content - Flame photometry;

-- Part 3.Determination of phosphor content - Quinoline phosphomolybdate

gravimetry;

-- Part 4.Determination of carbon content - High frequency combustion with

infrared absorption method;

-- Part 5.Determination of calcium, magnesium, zinc, copper, lead, chromium,

sodium, aluminium, nickel, cobalt and manganese content - Inductively coupled

plasma atomic emission spectrometry

This part is Part 5 of YS/T 1028.

This part was drafted in accordance with the rules given in GB/T 1.1-2009.

This part was proposed and shall be under the jurisdiction of the National Technical

Committee on Nonferrous Metals of Standardization Administration of China

(SAC/TC243).

Drafting organizations of this part. Guangdong Brunp Recycling Technology Co., Ltd.,

Beijing General Research Institute of Mining & Metallurgy, General Research Institute

of Nonferrous Metals, Guangzhou Research Institute of Nonferrous Metals.

Main drafters of this part. Li Changdong, Yu Haijun, Xie Yinghao, Zhang Xuemei, Feng

Xianjin, Jiang Qiutao, Zhang Diankai, Ding Hao, Xiong Xiaoyan, Wang Jin.

Methods for chemical analysis of lithium iron phosphate -

Part 5.Determination of calcium, magnesium, zinc, copper,

lead, chromium, sodium, aluminium, nickel, cobalt,

manganese content - Inductively coupled plasma atomic

emission spectrometry

1 Scope

This part of YS/T 1028 specifies the determination method of the content of calcium,

magnesium, zinc, copper, lead, chromium, sodium, aluminium, nickel, cobalt and

manganese in lithium iron phosphate.

This part applies to the determination of the content of calcium, magnesium, zinc,

copper, lead, chromium, sodium, aluminium, nickel, cobalt and manganese in lithium

iron phosphate. The measurement range is shown in Table 1.

Table 1 -- Measuring range of each element

2 Method summary

The sample is dissolved with hydrochloric acid, the carbon in it is filtered out, and the

element to be measured is measured by using an inductively coupled plasma atomic

emission spectrometer.

3 Reagents

4 Instruments

Inductively coupled plasma atomic emission spectrometer.

Under the best working conditions of the instrument, any instrument that can achieve

the following indexes can be used.

5 Samples

The particle size of the sample shall not be larger than 0.10 mm.

6 Analysis steps

7 Calculation

The content of the element to be measured is calculated based on the mass fraction wx

of the element to be measured, and the value is expressed in % and calculated according

to formula (1).

8 Precision

9 Test report

The test report shall include the following content.

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