alexa Direct Determination of N-Nitrosodiethanolamine (NDELA) in Ethanolamines by LC-MS-MS | OMICS International | Abstract
ISSN: 2157-7064

Journal of Chromatography & Separation Techniques
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Research Article

Direct Determination of N-Nitrosodiethanolamine (NDELA) in Ethanolamines by LC-MS-MS

George Kuriakose1*, Raghunandana KS2 and Saeed Al-Shahrani1

1SABIC Plastic Application Development Center, King Saud University Campus, Riyadh, KSA 12373, Saudi Arabia

2SABIC Technology Center-Jubail, P.O. Box 11669, Al-Jubail, 31961 Saudi Arabia

*Corresponding Author:
George Kuriakose
ABIC Plastic Application Development Center
King Saud University Campus, Riyadh
KSA 12373, Saudi Arabia
E-mail: [email protected]

Received date: February 16, 2017; Accepted date: February 21, 2017; Published date: February 27, 2017

Citation: Kuriakose G, Raghunandana KS, Al-Shahrani S (2017) Direct Determination of N-Nitrosodiethanolamine (NDELA) in Ethanolamines by LC-MSMS. J Chromatogr Sep Tech 8:354. doi: 10.4172/2157-7064.1000354

Copyright: © 2017 Kuriakose G, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

A sensitive and direct method for quantification of N-nitrosodiethanolamine (NDELA) in ethanolamine has been developed. The sample was dissolved in water and directly injected to high performance liquid chromatography with mass spectrometry to quantify NDELA. The eluent was transferred to mass spectrometer and ionized by heated electrospray positive ionization. The analyte was quantified in parts per billion level by using multiple reaction monitoring (MRM) mode. The MRM transition was m/z 135.0 to 74.1 and confirmed by m/z 104.0. To avoid ion suppression and better sensitivity for quantification, cation exchange column was used. A linearity coefficient of R2 >0.995 was observed in calibration over a wide range of concentration 1 ppb to 10 ppb of NDELA. The method was validated by linearity, accuracy and precision studies. The results show that recoveries were in between 97% to 106%.

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