室内空气 第33部分：用气相色谱/质谱法（GC/MS）测定邻苯二甲酸酯

[中文适用范围]： 本文件规定了室内空气中邻苯二甲酸酯的取样和分析，并描述了通过气相色谱-质谱法 (GC-MS) 对室内灰尘和表面溶剂擦拭样品中的邻苯二甲酸酯进行取样和分析。针对室内空气[1]，规定了两种替代取样、样品制备和样品引入方法，其可比性已在实验室间测试中得到证实： — 吸附管取样，随后进行热解吸 GC-MS；以及 — 通过吸附取样，随后进行溶剂萃取并注入 GC-MS。可以使用的其他吸附剂在附件 B 中进行了描述。根据取样方法，可以分析室内灰尘中的化合物邻苯二甲酸二甲酯至邻苯二甲酸二异十一烷基酯，如附件 D 中所述。对室内灰尘样本的调查仅适用于筛选方法。该调查仅得出指示性值，不适用于对潜在行动需求的最终评估。可以按照附件 C 中的说明分析溶剂擦拭样品中的邻苯二甲酸二甲酯至邻苯二甲酸二异十一酯。溶剂擦拭样品适用于非定量来源识别。注：原则上，该方法也适用于分析其他邻苯二甲酸酯、己二酸酯和环己烷二羧酸酯，但这是通过确定每种情况下的性能特征来确认的。附件 A 中给出了有关邻苯二甲酸酯的一般信息。 [外文原描述]： This document specifies the sampling and analysis of phthalates in indoor air and describes the sampling and analysis of phthalates in house dust and in solvent wipe samples of surfaces by means of gas chromatography-mass spectrometry (GC-MS). Two alternative sampling, sample preparation and sample introduction methods, whose comparability has been proven in an interlaboratory test, are specified for indoor air [ 1 ] : — sorbent tubes sampling with subsequent thermal desorption GC-MS, and — sampling by adsorption and subsequent solvent extraction and injection to GC-MS. Additional adsorbents that can be used are described in Annex B. Depending on the sampling method, the compounds dimethyl phthalate to diisoundecylphthalate can be analysed in house dust as described in Annex D. The investigation of house dust samples is only appropriate as a screening method. This investigation only results in indicative values and is not acceptable for a final assessment of a potential need for action. Dimethyl phthalate to diisoundecylphthalate can be analysed in solvent wipe samples as described in Annex C. Solvent wipe samples are suitable for non-quantitative source identification. NOTE In principle, the method is also suitable for the analysis of other phthalates, adipates and cyclohexane dicarboxylic acid esters, but this is confirmed by determination of the performance characteristics in each case. General information on phthalates are given in Annex A.