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叙述了一种简单快速测定车间空气中三氟化硼的方法，采用多用途空气收集器采集空气中的三氟化硼，三氟化硼在吸收液中水解成硼酸，然后用苯羟乙酸（ＭＡ）和扁桃酸（ＭＧ）络合显色，苯萃取，在６３３ｎｍ波长下分光光度法测定。方法的检测限为０．０５５ｍｇ／Ｌ，最低检测浓度为０．１ｍｇ／ｍ３（采集３０Ｌ空气）线性范围０～０．５ｍｇ／Ｌ，平均采样效率为９６．８％。
Abstract：An extraction spectrophotometric determination methOd of boron trifluoride (BF3) in air of workplace is developed. Boron trifluoride is collected with the universal air sampler containing absorbing solution and hydrolyzed to boric acid in the absorbing solution. The boron reacts with mandelic acid and malachite green. The boron-complex ion obtained is extracted into benzene and its absorbance is measured at 633nm. The calibration graph is linear in the range of 0～0. 5mg/L of boron. The minimum detectable concentration of BF3 is 0.1mg/m3 in 30L of air sample. The mean sampling rate of the procedure is 96.8%.
1NIOSH／OSHA．Occupationalhealthguidelinesforchemicalhazards．Cincinnati：DHHS（NLOSH），1981．812中国预防医学科学院劳动卫生与职业病研究所主编．车间空气监测检验方法．第三版．北京：人民卫生出版社，1990．5493HergetWF．Fouriertransforminfraredspectroscopyformonitoringsemiconducterproceesgasemisions．ApplIndHyg，1986，1：1104TorkelsonTR，SadekSE，RoweVK．Thetoxicityofborontrifluoridewheninhaledbylaboratoryanimals．AmIndHygAssocJ，1961，22：2635SatoS．Extraction－spectrophotometricdeterminationofboronwithmandelicacidandmalachitegreen．AnalChimActa，1983；151：465
基本信息:
DOI：10.19813/j.cnki.weishengyanjiu.1994.05.004
中图分类号:R136.36
引用信息:
[1]常文静，徐伯洪，肖宏瑞，刘家才.空气中三氟化硼的测定方法研究[J].卫生研究,1994(05).DOI:10.19813/j.cnki.weishengyanjiu.1994.05.004.
1994-09-20
1994-09-20