Occupational Exposure to Indium of Indium Smelter Workers.

Case reports of indium-related lung disease in workers have raised public concern to the human toxicity of indium (In) and its compounds. However, studies evaluating the exposure or health of workers in In smelting plants are rare. Therefore, in this study, we focused on four In smelting plants, with the main objective of characterizing In in smelter plants in China and discussing the potential exposure biomarkers of In exposure.

Baseline blood levels of manganese, lead, cadmium, copper, and zinc in residents of Beijing suburb.

Baseline blood concentrations of metals are important references for monitoring metal exposure in environmental and occupational settings. The purpose of this study was to determine the blood levels of manganese (Mn), copper (Cu), zinc (Zn), lead (Pb), and cadmium (Cd) among the residents (aged 12-60 years old) living in the suburb southwest of Beijing in China and to compare the outcomes with reported values in various developed countries. Blood samples were collected from 648 subjects from March 2009 to February 2010.

[Inductively coupled plasma mass spectrometry for the simultaneous determination of thirty metals and metalloids elements in blood samples].

Objective: To establish an inductively coupled plasma mass spectrometry(ICP-MS) method for determination of 30 trace elements including As, Ba, Be, Bi, Ni, Cd, Co, Cr, Cs, Cu, Ga, Mn, Pb, Sr, Tl, V, Ge, Mo, Nb, Ti, W, Te, Se, Zr, In, Sb, Hg, Ce, La, and Sm in human blood.

Method: The blood samples were analyzed by ICP-MS after diluted 1/10 with 0.01% Triton-X-100 and 0.

[Distribution of chromium in whole blood and urine among general population in China between year 2009 and 2010].

Objective: To evaluate the chromium (Cr) levels in blood and urine among general population in China between 2009 and 2010, and thereby to analyze its prevalent features.

Methods: From year 2009 to 2010, a total of 11 983 subjects of general population aged between 6 and 60 year-old were recruited from 24 districts in 8 provinces in eastern, central and western China mainland, by cluster random sampling method. The information about their living environment and health status were collected by questionnaire, and 11 983 blood samples and 11 853 urine samples were also collected.

[Determination of diborane in the air of workplace by ICP-AES].

Objective: A sampling method was established to collect diborane in the air of workplace and an ICP-AES method was developed to determine the Boron in desorbed solution.

Method: Diborane in the air of workplace was collected by solid sorbent tube filled with oxidant impregnated activated carbon. The adsorbed diborane was desorbed into 3% H2O2 aqueous, and then the desorbed Boron was determined by ICP-AES.