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. 2020 Dec 2;25(23):5692. doi: 10.3390/molecules25235692

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Precursor ion (a,c,e,g,i) and product ion (b,d,f,h,j) of analytes and internal standards, (a,b) NVP, (c,d) NVP-d3, (e,f) 2-OH NVP, (g,h) 2-OH NVP-d3 and (i,j) 3-OH NVP.

Precursor ion (a,c,e,g,i) and product ion (b,d,f,h,j) of analytes and internal standards, (a,b) NVP, (c,d) NVP-d3, (e,f) 2-OH NVP, (g,h) 2-OH NVP-d3 and (i,j) 3-OH NVP.