PRECOLUMN INLET SYSTEM FOR GAS-CHROMATOGRAPHIC ANALYSIS OF TRACE QUANTITIES OF SHORT-CHAIN ALIPHATIC-AMINES
PRECOLUMN INLET SYSTEM FOR GAS-CHROMATOGRAPHIC ANALYSIS OF TRACE QUANTITIES OF SHORT-CHAIN ALIPHATIC-AMINES
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DOI：
10.1021/ac60333a051
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发表时间：
1973-01-01
影响因子：
7.4
通讯作者：
MOSIER, AR
中科院分区：
文献类型：
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作者：
ANDRE, CE;MOSIER, AR
最近对环境质量的重视集中在牛饲养场作为氮污染的可能来源上(1)。大型饲养场挥发的含氮碱（据报道为氨）可以丰富附近的湖泊(2)。同样，某些植物可以通过叶面吸收来吸收大气中的氨（3,4）。除氨外，饲养场还可能挥发出大量不可蒸汽蒸馏的含iv化合物(5)。由于长期以来，动物粪便的气味与胺有关，因此进行了初步实验，以确认饲养场挥发物中存在这些氮基。收集和直接气相色谱（GC）分析含有挥发性胺的现场空气样品所固有的损失需要间接分析方案。大多数处理问题可以通过将胺转化为各自的硫酸氢盐来消除。本文介绍了一种能够分析短链脂肪胺软盐水溶液的气相色谱系统。
Recent emphasis on environmental quality has focused attention on cattle feedlots as a possible source of nitrogen pollution (1). Nitrogenous bases (reported as ammonia) volatilized from large feedlots can enrich nearby lakes (2). Likewise, certain plants can take up atmospheric ammo-nia through foliar absorption (3, 4). In addition to ammo-nia, significant quantities of nonsteam-distillable, IV-con-taining compounds may also be volatilized from feedlots (5). Because amines have long been implicated in animal waste odors, preliminary experimentation was undertaken to confirm the presence of these nitrogen bases in feedlot volatiles. Losses inherent in the collection and direct gas chromatographic (GC) analysis of field air samples con-taining volatile amines necessitated an indirect analytical scheme. Most of the handling problems can be eliminated by conversion of the amines to their respective hydrogen sulfate salts. This paper describes a GC system capable of analyzing aqueous solutionsof salts of short-chain aliphatic amines.