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《化学分析计量》 2022年第08期
DOI:10.3969/j.issn.1008-6145.2022.08.010
气相色谱-质谱法同时测定塑胶跑道中3,3’-二氯-4,4’-二氨基二苯甲烷和6种邻苯二甲酸酯
汤莹
实朴检测技术(上海)股份有限公司,上海 201109 
Simultaneous determination of 3,3’-Dichloro-4,4’-diaminodiphenylmethane and six plasticisers compounds in plastic tracks by gas chromatography-mass spectrometry
TANG Ying
SEP Analytical Services (Shanghai) Co., Ltd., Shanghai 200109, China 
摘要:建立气相色谱-质谱法同时测定塑胶跑道中3, 3'-二氯一4, 4'-二氨基二苯甲烷和6种邻苯二甲酸酯类增塑剂含量。样品以乙酸乙酯超声提取后,经DB-5MS色谱柱(30 m×0.25 mm, 0.25μm)分离,采用气相色谱-质谱法进行定性和定量分析。邻苯二甲酸二丁酯、邻苯二甲酸丁二卞酯、3, 3'-二氯一4, 4'-二氨基二苯甲烷、邻苯二甲酸二乙基己酯、邻苯二甲酸二正辛酯的质量浓度在0.25~10 mg/L范围内线性良好,邻苯二甲酸二异壬酯、邻苯二甲酸二异癸酯在0.625~25 mg/L范围内线性良好,相关系数均大于0.995;3, 3'-二氯一4, 4'-二氨基二苯甲烷的检出限为0.38 mg/kg,样品加标回收率为83.3%~116.8%,测定结果的相对标准偏差为1.9%~3.5%(n=6);6种邻苯二甲酸酯类增塑剂检出限为0.6~3.6 mg/kg,样品加标回收率为84.0%~111.6%,测定结果的相对标准偏差为3.5%~9.1%(n=6)。该方法简便快速,准确度高,检出限低,满足定量分析要求。 
Abstract:A gas chromatography-mass spectrometry (GC-MS) was developed for the simultaneous determination of 3, 3'-Dichloro-4, 4'-diaminodiphenylmethane (MOCA) and six phthalate plasticizers in plastic tracks. After ultrasonic extraction with ethyl acetate, the samples were separated by DB-5MS column (30 m×0.25 mm, 0.25μm), and qualitatively and quantitatively analyzed by gas chromatography-mass spectrometry. The mass concentrations of MOCA and 4 phthalates including dibutyl phthalate (DBP), benzyl butyl phthalate (BBP), bis(2-ethylhexyl)phthalate (DEHP), di- n-octyl phthalate (DNOP) had a good linear relationship with the chromatographic peak area in the range of 0.25-10 mg/L, di-iso-nonyl phthalate (DINP) and di-iso-decyl phthalate (DIDP) had a good linear relationship with the chromatographic peak area in the range of 0.625-25 mg/L, the correlation coe fficients were all more than 0.995. The detection limits of MOCA were 0.38 mg/kg, the recoveries of the standard addition were 83.3%-116.8%, and the relative standard deviation of determination results was 1.9%-3.5%(n=6). The detection limits of six phthalate plasticizers were 0.6-3.6 mg/kg, the recoveries of the standard addition were 84.0%-111.6%, and the relative standard deviation of determination results was 3.5%-9.1%(n=6). The method is simple, rapid, high accuracy and low detection limit, which can meet the requirements of quantitative analysis. 
关键词:塑胶跑道;3,3’-二氯一4,4’-二氨基二苯甲烷;邻苯二甲酸酯;气相色谱-质谱法 
Keywords:plastic tracks; MOCA; phthalate; gas chromatography-mass spectrometry 
本文引用格式:
汤莹.气相色谱-质谱法同时测定塑胶跑道中3,3’-二氯-4,4’-二氨基二苯甲烷和6种邻苯二甲酸酯[J].化学分析计量,2022,31(8):44.
TANG Ying. Simultaneous determination of 3,3’-dichloro-4,4’-diaminodiphenylmethane and six plasticisers compounds in plastic tracks by gas chromatography-mass spectrometry[J]. Chemical Analysis and Meterage,2022,31(8):44. 

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