Tender coconut varieties Retention time Peak area Peak height Concentration (mg kg-1) Maximum Residual Limit (MRL)
Arasampattai (C1) BDL BDL BDL BDL (0.5 – 1.0  mg kg-1)
Sowcotpachai (C2) BDL BDL BDL BDL
kuttyaiadi (Kerala) C3) BDL BDL BDL BDL
Malayan orange(C4) 2.250 1503772 160119 5.847
Malayan yellow (C5) 2.267 1023 784 0.004
Alphanam (C6) BDL BDL BDL BDL
sowchot orange (C7) BDL BDL BDL BDL
Nettai (C8) 2.275 83106 24363 0.323
Kuttai(C9) BDL BDL BDL BDL
1000kaychi (C10) BDL BDL BDL BDL
*BDL-Below Detection Limit
Table 3: Monochrotophos residues content in tender coconut water samplesby HPLC.