Journal of Analytical Methods in Chemistry

Research Article

Determination of Glyphosate, Glufosinate, and Their Major Metabolites in Tea Infusions by Dual-Channel Capillary Electrophoresis following Solid-Phase Extraction

Table 3

Contents of GLYP, GLUF, AMPA, and MPPA in tea infusions determined with CE-C4D and the reference methods.
IDSample typeOriginGLYP (µg/L)MPPA (µg/L)GLUF (µg/L)AMPA (µg/L)
TX1Green teaVN--45.1 ± 2.53-
TX2Green teaVN----
TX3Green teaVN--53.9 ± 3.02-
TX4Green teaEngland--52.5 ± 2.94-
TX5Green teaRussia----
TD1Black teaVN----
TD2Black teaVN----
TD3Black teaSri Lanka----
TD4Black teaEngland----
TD5Black teaRussia----
TD6Black teaVN----
TD7Black teaEngland----
TOL1Oolong teaVN----
TOL2Oolong teaVN----
TOL3Oolong teaVN5.34 ± 0.33---
TOL4Oolong teaTaiwan10.74 ± 0.67---