Abstract:
Objective To establish a qulity control procedure of lead measurement in the air of workplace.
Methods Establish a procedure of quality control in the whole process of sampling, sample handling, treatment and examining to achieve the accuracy in the determination of lead and its compounds in workplace by aromatic absorbption spectrometry.
Results With the quality control of sample process, the samping efficiency achieved 98.3% (97.6%-98.6%). The co-efficent of correlation was 0.9999, with a linear range 0.2-100.0 μg/mL. The detection limit was 0.082 μg/mL. The average value of blank membrane was (0.1 104& #177;0.0144)μg/mL, with the determination of quality control samples GBW (E)080211 and GBW (E) 080212, the results were(3.3& #177;0.1)μg per-piecereference(3.1& #177;0.6)μg per-pieceand(16.8& #177;0.9)μg per-piecereference (17.0& #177;1.5) μg per-piece respectively, the error was in the permit range. The determination of two curves of high and low showed no significant difference.
Conclusion This procedure of quality control of lead and its compounds measurement in workplace is practicable.
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