Development of the certified reference material of mercury in lyophilized human urine / 中华劳动卫生职业病杂志

<p><b>OBJECTIVE</b>To develop the certified reference material of mercury in lyophilized human urine.</p><p><b>METHODS</b>Human urine samples from normal level mercury districts were filtered, homogenized, dispensed, lyophilized and radio-sterilized. Homogeneity test, stability inspection and certification were conducted using a atom fluorescence spectrophotometric method. The physical and chemical stability of the certified reference material were assessed for 18 months. The certified values are based on analysis made by three independent laboratories.</p><p><b>RESULTS</b>The certified values are as follows: low level was (35.6 ± 2.1) µg/L, high level was (50.5 ± 3.0) µg/L.</p><p><b>CONCLUSION</b>The certified reference material of mercury in lyophilized human urine in this research reached the national certified reference material requirements and could be used for the quality control.</p>

Study on the knowledge, behavior and attitude of influenza A (H1N1) among residents in Shuangqiao District, Chengde city / 中华实验和临床病毒学杂志

<p><b>OBJECTIVE</b>To understand the the residents' knowledge, behavior and attitude of influenza A (H1N1) in Shuangqiao District of Chengde city, and provide the basis for making proper strategies of health education, prevention and control on influenza A (H1N1).</p><p><b>METHODS</b>211 residents from 1 community and 1 village of Shuangqiao District were selected to participate the questionnaire interview with multi-stage clustering sampling.</p><p><b>RESULTS</b>97.6% of the interviewed had received some kind of information on influenza A (H1N1); Total awareness rate of influenza A (H1N1) knowledge was 58.5%, which increased with the level of education and varied among diverse occupations; 48.2% of respondents conceded that their lives was affected by the influenza A ( H1N1) in some degree, and 9% of selected residents believed that there would be a severe pandemicity in this winter, while 7% of respondents didn't consider any form of preventive methods in the future; 78% of respondents expressed their wishes to be vaccinated, but 11.0% of respondents refused to received inoculation explicitly; on the issue of assessment on services provided by governments and health facilities, 93% of respondents expressed their satisfaction hierarchically. Conclusion Residents in Shuangqiao District lacked of comprehensive knowledge of influenza A (H1N1), and some specific health education should be carried out.</p>