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Molecules 2018, 23(2), 487; https://doi.org/10.3390/molecules23020487

Fast and Simple Analytical Method for Direct Determination of Total Chlorine Content in Polyglycerol by ICP-MS

1
Faculty of Chemistry, Silesian University of Technology, Krzywoustego 6, 44-100 Gliwice, Poland
2
Wood Technology Institute, Bioenergy Department, Winiarska 1, 60-654 Poznan, Poland
*
Author to whom correspondence should be addressed.
Received: 4 February 2018 / Revised: 19 February 2018 / Accepted: 20 February 2018 / Published: 23 February 2018
(This article belongs to the Special Issue Green Analytical Chemistry)
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Abstract

The fast and simple method for total chlorine determination in polyglycerols using low resolution inductively coupled plasma mass spectrometry (ICP-MS) without the need for additional equipment and time-consuming sample decomposition was evaluated. Linear calibration curve for 35Cl isotope in the concentration range 20–800 µg/L was observed. Limits of detection and quantification equaled to 15 µg/L and 44 µg/L, respectively. This corresponds to possibility of detection 3 µg/g and determination 9 µg/g of chlorine in polyglycerol using studied conditions (0.5% matrix-polyglycerol samples diluted or dissolved with water to an overall concentration of 0.5%). Matrix effects as well as the effect of chlorine origin have been evaluated. The presence of 0.5% (m/m) of matrix species similar to polyglycerol (polyethylene glycol—PEG) did not influence the chlorine determination for PEGs with average molecular weights (MW) up to 2000 Da. Good precision and accuracy of the chlorine content determination was achieved regardless on its origin (inorganic/organic). High analyte recovery level and low relative standard deviation values were observed for real polyglycerol samples spiked with chloride. Additionally, the Combustion Ion Chromatography System was used as a reference method. The results confirmed high accuracy and precision of the tested method. View Full-Text
Keywords: chlorine; chloride; polyglycerol; inductively coupled plasma mass spectrometry; simple sample preparation chlorine; chloride; polyglycerol; inductively coupled plasma mass spectrometry; simple sample preparation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Jakóbik-Kolon, A.; Milewski, A.; Dydo, P.; Witczak, M.; Bok-Badura, J. Fast and Simple Analytical Method for Direct Determination of Total Chlorine Content in Polyglycerol by ICP-MS. Molecules 2018, 23, 487.

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