Qin, Wen-hua <br/><br/>
[High-performance liquid chromatography for determination of urea in air of work place].  [electronic resource] 

 -  Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases  Nov 2010 
 - 856-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1001-9391 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air Pollutants--analysis<br/>Chromatography, High Pressure Liquid--methods<br/>Urea--analysis<br/>Workplace