Grover R, Kerr L A
J Environ Sci Health B. 1981;16(1):59-66. doi: 10.1080/03601238109372239.
Polyurethane foam was an efficient adsorbent for trapping vapors of butyl esters of 2,4-D (2,4-dichlorophenoxyacetic acid) and triallate (S-(2,3,3-trichloroallyl)diisopropylthiocarbamate) in high volume air monitoring studies and of butyl esters of 2,4-D, iso-octyl ester of 2,4-D, n-butyl ester of 2,4,5-T (2,4,5-trichlorophenoxyacetic acid), bromoxynil octanoate (2,5-dibromo-4-hydroxybenzonitrile), triallate, and trifluralin (alpha, alpha, alpha-trifluoro-2,6-dinitro-N-N-dipropyl-p-toluidine) in short-term, low volume, worker inhalation exposure studies. The collected herbicide vapor was readily desorbed under soxhlet extraction with n-hexane and subsequently analyzed with electron-capture GLC. The overall efficiencies, for both trapping and extraction, were over 90%, using a single plug, for all herbicides, except triallate. In the case of triallate, two plugs in series were required for efficient trapping under the high volume air monitoring situation.
在大容量空气监测研究中，聚氨酯泡沫是一种高效吸附剂，可捕集2,4-滴（2,4-二氯苯氧基乙酸）丁酯和野麦畏（S-(2,3,3-三氯烯丙基)二异丙基硫代氨基甲酸酯）的蒸汽；在短期、小容量的工人吸入暴露研究中，它可捕集2,4-滴丁酯、2,4-滴异辛酯、2,4,5-涕（2,4,5-三氯苯氧基乙酸）正丁酯、溴苯腈辛酸酯（2,5-二溴-4-羟基苯甲腈）、野麦畏和氟乐灵（α,α,α-三氟-2,6-二硝基-N,N-二丙基对甲苯胺）的蒸汽。收集到的除草剂蒸汽在正己烷索氏提取下很容易解吸，随后用电子捕获气相色谱法进行分析。对于所有除草剂，除了野麦畏，使用单个吸附柱时，捕集和提取的总效率均超过90%。在大容量空气监测情况下，对于野麦畏，需要串联两个吸附柱才能有效捕集。
