Rotating-disk sorptive extraction coupled to gas chromatography mass spectrometry for the determination of phthalates in bottled water,Analytical Methods

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Rotating-disk sorptive extraction coupled to gas chromatography mass spectrometry for the determination of phthalates in bottled water
Analytical Methods ( IF 2.7 ) Pub Date : 2019-10-31 , DOI: 10.1039/c9ay02076d
Valentina Manzo _{1,

2,

3,

4,

5} , Mercedes Becerra-Herrera _{3,

4,

5,

6,

7} , Daniel Arismendi _{1,

2,

3,

4,

5} , Alejandra Molina-Balmaceda _{1,

2,

3,

4,

5} , Manuel A. Caraballo _{3,

4,

5,

8,

9} , Pablo Richter _{1,

2,

3,

4,

5}

Affiliation

The determination of eight phthalates in plastic bottled water, namely, dimethyl phthalate, diethyl phthalate, dipropyl phthalate, dibutyl phthalate, benzyl butyl phthalate, 2-ethylhexyl adipate, 2-ethylhexyl phthalate, and di-n-octyl phthalate, was carried out for the first time using a green extraction/preconcentration technology by rotating disk sorptive extraction (RDSE) and gas chromatography-mass spectrometry. The detection limits and precision (% RSD) were in the ranges 0.01–0.04 μg L⁻¹ and 1–16%, respectively, for all the analytes. Absolute recoveries were in the range of 73 to 100% with the only exception being di-propyl phthalate (DPP, 57%), which were satisfactory considering that RDSE is an equilibrium based extraction technique. The applicability of this methodology was confirmed through the analysis of two types of Chilean commercial plastic bottled waters where five of the eight studied phthalates were quantified. This method is significantly faster than its counterpart by stir bar sorptive extraction (SBSE) and requires a considerably lower volume of the sample and solvent than SBSE; therefore it is an excellent green analytical methodology.

中文翻译：

旋转盘吸附萃取-气相色谱质谱法测定瓶装水中的邻苯二甲酸盐

进行了塑料瓶装水中八种邻苯二甲酸酯的测定，分别用于邻苯二甲酸二甲酯，邻苯二甲酸二乙酯，邻苯二甲酸二丙酯，邻苯二甲酸二丁酯，邻苯二甲酸苄丁酯，己二酸2-乙基己酯，邻苯二甲酸2-乙基己酯和邻苯二甲酸二正辛酯。首次通过转盘吸附萃取（RDSE）和气相色谱-质谱联用技术采用绿色萃取/预浓缩技术。检出限和精密度（％RSD）为0.01–0.04μgL ^-1和所有分析物的1-16％。绝对回收率在73％至100％范围内，唯一的例外是邻苯二甲酸二丙酯（DPP，57％），考虑到RDSE是基于平衡的萃取技术，这是令人满意的。通过对两种智利商业塑料瓶装水进行分析，证实了该方法的适用性，其中定量研究了八种邻苯二甲酸盐中的五种。该方法比搅拌棒吸附萃取（SBSE）的方法快得多，并且所需的样品和溶剂的体积比SBSE少得多。因此，这是一种出色的绿色分析方法。

更新日期：2019-10-31

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