粉末压片-X荧光法测定无机包膜钛白粉主含量

doi:10.11962/1006-4990.2020-0343

Abstract

Abstract:

A method of determination of TiO₂ in inorganic coated titanium pigment by X-ray fluorescence spectrometry based on powder pressed sampling was established.A set of industrial inorganic coated titanium pigment were selected as the stan-dard samples and the content of the standard sample was analyzed by chemical titration as the standard sample value.The matrix effect was corrected by methods of empirical α coefficient and Compton scattering internal standard.A analytical curve was established and the measuring conditions and analytical methods were studied.The precision and accuracy experiments showed that the relative standard deviation（RSD） was 0.14% and the accuracy was reliable.

Key words: X-ray fluorescence spectrometry, titanium pigment, titanium dioxide, inorganic coated

CLC Number:

TQ134.11

Chen Wen,Long Xiang,Jin Yaqiu,Mao Duan. Determination of major component in inorganic coated titanium pigment by X-ray fluorescence spectrometry with pressed powder[J]. Inorganic Chemicals Industry, 2021, 53(5): 93-95.

Figures/Tables 6

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Table 1

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References 11

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样品编号	LiF200-K_α	LiF200-K_β	LiF220-K_β
1	0.14	0.13	0.18
2	0.10	0.04	0.08
3	0.14	0.11	0.19
4	0.07	0.05	0.46
5	0.40	0.28	0.15
6	0.02	0.15	0.27
7	0.16	0.09	0.12
8	0.36	0.52	0.42
9	0.37	0.48	0.43
10	0.39	0.34	0.23

样品编号	扣减法	直接分析法	样品编号	扣减法	直接分析法
1	3.02	0.14	6	3.32	0.02
2	4.48	0.10	7	3.64	0.16
3	3.17	0.14	8	2.74	0.36
4	2.82	0.07	9	2.68	0.37
5	2.93	0.40	10	3.01	0.39

样品序号	分析结果	平均值	RSD	样品序号	分析结果	平均值	RSD
1	92.44	92.48	0.14	6	92.42	92.48	0.14
2	92.51			7	92.64
3	92.54			8	92.21
4	92.65			9	92.56
5	92.40			10	92.43

样品序号	化学滴定法	本方法	误差绝对值
1^#	91.71	91.61	0.10
2^#	92.41	92.34	0.07
3^#	96.60	96.44	0.16
4^#	95.47	95.58	0.11
5^#	94.67	94.44	0.23
6^#	91.71	91.61	0.10

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National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Determination of major component in inorganic coated titanium pigment by X-ray fluorescence spectrometry with pressed powder

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