Determination of 6 Harmful Elements in Cattle-hide Glue by Microwave Digestion-ICP-MS

OBJECTIVE To establish a method for the determination of 6 elements such as Pb, Cd, As, Hg, Cu and Cr in Cattle-hide Glue. METHODS The samples were digested by microwave, and 6 elements were determined by ICP-MS simultaneously. RESULTS The detection limits of Pb, Cd, As, Hg, Cu and Cr were 0.027, 0.010, 0.067, 0.012, 0.040, 0.048 μg·L^-1, respectively. The method had good linear correlation(r≥0.999 0) and the average spiked recoveries were in the range of 92.6%~110.9% with RSD less than 10%. CONCLUSION The method is exact, sensitive, simple, and can be used to determine harmful elements in Cattle-hide Glue.