摘要
目的考察市售不同品牌内墙涂料中可溶性重金属的含量水平,分析可能存在的风险因素。方法将不同品牌涂料按价格和质量因素分为低、中、高品质组,按照《室内装饰装修材料内墙涂料中有害物质限量》（GB 18582-2008）方法进行样品前处理,将涂料涂布并干燥后,可溶性重金属在0.07 mol/L盐酸条件下提取,ICP-MS测定。结果高品质组中可溶性铅为（11.53±1.87）mg/kg,镉（9.82±6.20）mg/kg、铬（5.68±3.85）mg/kg、汞（1.66±1.53）mg/kg,涂料中铅、镉、铬和汞均未超标;中等品质组中可溶性铅为（30.16±23.04）mg/kg;镉（28.36±25.73）mg/kg,铬（29.86±21.00）mg/kg,汞（19.02±22.36）mg/kg,涂料中镉、铬和汞超标率分别为8.3%,16.7%,16.7%;低品质组中可溶性铅（85.67±11.02）mg/kg,镉（50.42±23.58）mg/kg,铬（49.78±23.34）mg/kg,汞（42.22±25.17）mg/kg,涂料中铅、镉、铬和汞超标率分别为33.3%,16.6%,33.3%,25.0%,各个品质组中4种可溶性重金属间含量经t检验均具有统计学意义（P〈0.05）,样品的加标回收率为86.2%～96.2%,RSD%为1.95%～3.55%。结论市售中、低品质内墙涂料中可溶性金属存在超标现象,消费者购买内墙涂料时应控制内墙涂料质量,避免室内重金属污染,同时提示生产部门应加强生产过程中的质量管理和控制。
Objective To investigate the content of soluble metals in commercial interior wall paints with different quality,and to analyze the possible risk factors. Methods The quality of commercial interior wall paints was classified into low level group,middle level group and high level group according to the price,brand and qualify factors. Samples were pre-treated by the method in GB 18582- 2008. After the coated paints were dried,soluble metals were extracted by 0. 07 mol / L HCl and detected by ICP-MS. Results The content of soluble metals in the high level group was Pb（ 11. 53 ± 1. 87） mg / kg,Cd（ 9. 82 ± 6. 20） mg / kg,Cr（ 5. 68 ± 3. 85） mg / kg and Hg（ 1. 66 ± 1. 53） mg /kg,which were not exceeding the standard limits. The content of soluble metals in the middle level group was Pb（ 30. 16 ± 23. 04） mg / kg,Cd（ 28. 36 ± 25. 73） mg / kg,Cr（ 29. 86 ± 21. 00） mg / kg and Hg（ 19. 02 ± 22. 36） mg /kg,the unqualified rate of Cd,Cr and Hg was 8. 3%,16. 7% and 16. 7%,respectively.The content of soluble metal in the low level group was Pb（ 85. 67 ± 11. 02） mg / kg,Cd（ 50. 42 ± 23. 58） mg / kg,Cr（ 49. 78 ± 23. 34） mg / kg and Hg（ 42. 22 ± 25. 17） mg / kg,the unqualified rate of Pb,Cd,Cr and Hg was33. 3%,16. 6%,33. 3% and 25. 0% respectively. The content of soluble metals in interior wall paints with different quality was different statistically（ P〈 0. 05）. The average recoveries and RSD were in the range of 86. 2% ～96. 2% and 1. 95% ～ 3. 55%,respectively. Conclusions Transnormal soluble metals was widespread in commercially available interior wall paints with low and middle level quality,which suggested that the quality management and control in the production of interior wall paints should be strengthened by relevant production departments.
出处
《环境卫生学杂志》
2015年第4期373-376,共4页
JOURNAL OF ENVIRONMENTAL HYGIENE
