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. Author manuscript; available in PMC: 2020 Jun 26.

Published in final edited form as: J Agric Food Chem. 2019 Jun 13;67(25):7190–7196. doi: 10.1021/acs.jafc.9b01878

Table 2.

Analysis of Retention Time and Integrated Area for Vendor 1 Dietary Supplement^a

	retention time (RT; min)			integrated area (IA)
component	avg (n = 4)	RSD% (intraday)	RSD% (interday)	avg (n = 4)	RSD% (intraday)	RSD% (interday)
trimethylglycine	0.97	0.21	1.57	1.89 × 10⁸	0.29	1.78
creatine	1.13	0.18	0.63	4.27 × 10⁷	1.22	14.18
taurine	0.72	0.29	2.18	1.66 × 10⁷	1.24	1.03
glycocyamine	1.11	0.19	0.63	1.61 × 10⁷	3.93	5.54

^a

Data analysis based on four consecutive HPLC (cyano column)-TOF MS experimental runs.