洗护发产品中8种重金属元素含量的测定

doi:10.3969/j.issn.1001-1803.2021.01.014

Abstract

Abstract:

The contents of heavy metal elements Pb, Cr, Cd, Ni, Cu, Zn, Co and Fe in shampoo, conditioner and hair dye were determined by atomic absorption spectrophotometry （AAS）. The results showed that the detection limits of eight heavy metal elements are all lower than 1.00 mg/kg, which meets the requirements of the limit of heavy metal content in the hygienic standard of cosmetics in China. The recoveries of eight heavy metal elements are all between 96.30% and 108.30%, the relative standard deviation is less than 1.00% （n=6）, and the correlation coefficient is greater than 0.999 0. The linear correlation of the method is good, and the accuracy of the measured results can meet the analysis requirements. Additionally, the study conducted a comparative analysis based on the types and functions of the products. It could be seen that in order to meet the demand of product, Zn, Fe, Pb and other heavy metal elements were detected in hair care products and the contents are high.

Key words: atomic absorption spectrophotometry, hair care products, heavy metals

CLC Number:

TQ658

ZHAO Xuan,GAO Qing-rui,QIN Shi-li,GAO Li-di. Determination of eight heavy metal elements in shampoo andhair care products[J].China Surfactant Detergent & Cosmetics, 2021, 51(1): 78-82.

Figures/Tables 7

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References 12

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元素	曲线方程	相关系数	检出限/（mg·kg^-1）
Pb	y=0.020 1x+0.001 7	0.999 2	0.008 0
Cr	y=0.049 7x+0.000 2	0.999 9	0.006 0
Cd	y=0.432 0x+0.003 8	0.999 4	0.000 7
Fe	y=0.013 8x+0.000 1	0.999 9	0.021 7
Zn	y=0.058 6x+0.017 6	0.999 1	0.020 4
Cu	y=0.209 8x+0.000 6	0.999 9	0.001 4
Co	y=0.016 3x+0.000 7	0.999 9	0.036 8
Ni	y=0.010 2x+0.000 1	0.999 6	0.029 4

元素	回收率/%			RSD/%
元素	洗发水	护发素	染发剂	洗发水	护发素	染发剂
Pb	105.20	108.20	105.00	0.14	0.89	0.19
Cr	108.30	106.20	107.10	0.91	0.34	0.84
Cd	103.60	105.00	102.40	0.13	0.13	0.08
Fe	102.00	103.90	104.30	0.06	0.16	0.16
Zn	96.80	98.30	98.20	0.14	0.21	0.21
Cu	104.60	107.40	102.50	0.05	0.85	0.05
Co	106.40	105.70	108.00	0.39	0.09	0.88
Ni	96.30	96.60	97.90	0.31	0.34	0.43

样品	含量/（mg·kg^-1）
样品	Pb	Cr	Cd	Fe	Zn	Cu	Co	Ni
A牌洗发水（柔顺滋养）	—	1.95	0.10	1.65	0.12	0.03	—	0.30
B牌去屑洗发水（去屑）	0.02	—	0.05	11.45	1.78	—	—	0.20
C牌清润无硅洗发水（清透闪亮）	—	1.17	0.10	1.65	21.28	0.03	—	0.30
D牌洗发水（控油清爽）	0.02	—	0.15	—	4.82	0.13	—	0.03
E牌去屑柔顺洗发露（去屑柔滑）	0.02	0.13	0.15	—	8.48	0.05	—	0.03
F牌护发素（深度修护）	—	0.38	—	29.88	2.30	—	—	—
G牌护发素（润养）	—	0.38	—	10.62	26.37	—	—	—
H牌护发素	—	1.17	—	1.30	1.87	—	—	—
I牌护发素（润养）	0.28	—	0.23	11.45	36.80	—	—	—
J牌护发素（修护）	0.28	2.22	0.08	—	1.33	0.28	—	—
K牌染发剂	0.23	2.20	—	—	—	—	0.50	—
L牌染发剂	0.23	2.20	—	—	0.88	—	0.50	—
M牌染发剂	0.30	3.03	—	2.47	4.63	—	0.50	—
N牌染发霜	1.08	1.28	—	11.30	7.70	0.15	—	—
N牌显色乳	1.85	0.43	—	5.57	0.60	—	—	0.38

Determination of eight heavy metal elements in shampoo andhair care products

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