Quantification of Sensitizing Metals in Tattooing Pigments by SF-ICP-MS Technique

Abstract

Allergic reactions to metals and metal salts used in pigments for tattoos are surprisingly frequent. The objective of this study was to quantify the metal content of tattoo inks using the sector field inductively coupled plasma mass spec- trometry analysis (SF-ICP-MS). The inks were subjected to a robust microwave digestion in a mixture of nitric and fluoridric acids, and hydrogen-peroxide. A total of 13 tattoo inks including various colors, as black, blue, brown, green, red, violet, white and yellow, were examined for the content of Cd, Co, Cr, Hg and Ni. The limits of detection and quanti- fication were as follows (ng/ml): Cd, 0.02 and 0.07; Co, 0.06 and 0.20; Cr, 0.80 and 2.64; Hg, 0.50 and 1.65; and Ni, 0.40 and 1.32. The method was accurate reporting the following mean recoveries (%): Cd, 92; Co, 94; Cr, 96; Hg, 105; and Ni, 103. The precision of the method was calculated as intra-day (%) and inter-day repeatability (%) and results were: Cd, 2.09 and 5.20; Co, 1.58 and 2.67; Cr, 2.07 and 2.99; Hg, 3.88 and 4.55; and Ni, 4.05 and 5.11. All the tested metals were present in the tattoo pigments, but the relative contribution of elements to the tattoo ink compositions was highly variable between samples and even among like-colored pigments. The highest element was Cr in all the pigments (315-4720 ng/g) followed by Ni (37.5-2318 ng/g) and Cd (6.67-1150 ng/g); the lower elements were Co (2.78-125 ng/g) and Hg (

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SF-ICP-MS技术定量纹身颜料中致敏金属

对纹身颜料中使用的金属和金属盐的过敏反应非常频繁。本研究的目的是利用扇形场电感耦合等离子体质谱分析(SF-ICP-MS)定量纹身油墨中的金属含量。这些油墨在硝酸、氟酸和过氧化氢的混合物中进行了强力微波消解。对黑、蓝、棕、绿、红、紫、白、黄等13种不同颜色的纹身油墨进行了Cd、Co、Cr、Hg、Ni含量的检测。检测限和定量限分别为(ng/ml): Cd、0.02、0.07;Co, 0.06和0.20;Cr分别为0.80和2.64;Hg, 0.50和1.65;Ni分别为0.40和1.32。方法准确，平均加样回收率(%):Cd, 92;有限公司,94;Cr, 96;Hg, 105;Ni, 103岁。方法精密度以日内(%)和日内重复性(%)计算，结果分别为:Cd、2.09和5.20;Co分别为1.58和2.67;Cr, 2.07和2.99;Hg, 3.88和4.55;Ni为4.05和5.11。所有测试的金属都存在于纹身颜料中，但元素对纹身墨水成分的相对贡献在不同样品之间甚至在相似颜色的颜料中都是高度不同的。各色素中元素含量最高的是Cr (315 ~ 4720 ng/g)，其次是Ni (37.5 ~ 2318 ng/g)和Cd (6.67 ~ 1150 ng/g);较低元素为Co (2.78 ~ 125 ng/g)和Hg(<定量限-179 ng/g)。由于目前还没有相关法规对纹身油墨进行监管，本研究可作为商业油墨化学安全评估和监管立法建议的一个起点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。