Research Article

UPLC-MS/MS Method for Simultaneous Determination of Three Major Metabolites of Mequindox in Holothurian

Table 5

Concentrations of 1-DMEQ, BDMEQ, and MQCA contamination in commercial holothurian samples.

Commercial sampleSample codeConcentration of 1-DMEQ (μg/kg)Concentration of BDMEQ (μg/kg)Concentration of MQCA (μg/kg)

Holothurian1NDNDND
22.274.683.99
3ND6.886.52
43.966.247.96
55.683.95ND
66.266.21ND
76.443.698ND
8NDNDND
9NDNDND
103.985.683.57
11NDNDND
12NDND9.22
134.696.098.69
14NDNDND
156.104.33ND
16NDND5.39
17NDNDND
185.624.18ND
195.335.623.59
20ND5.19ND

ND: not detected.