Modeling a pesticide remediation strategy for preparative liquid chromatography using high-performance liquid chromatography

Table 1 Elution times for all analytes, organized alphabetically and by elution time. Clothianidin, imidacloprid, carbaryl, diuron, spinosyn A, and myclobutanil elute before all cannabinoids and the present method is suitable for remediating them by fractionating the first 19% of eluent to waste. Retention times were set at ± 2%

	Analyte (Alphabetical)	Retention Time (min)	Analyte (Elution order)	Retention Time (min)
1	∆8-THC	11.510	Clothianidin	1.451
2	∆9-THC	11.610	Imidacloprid	1.492
3	∆9-THCA	12.320	Carbaryl	2.160
4	∆9-THCB	10.678	Diuron	2.314
5	∆9-THCH	12.331	Spinosyn A	2.480
6	∆9-THCP	12.915	Myclobutanil	3.258
7	∆9-THCV	9.160	7-OH-CBD	3.441
8	∆9-THCVA	10.646	Boscalid	3.550
9	7-OH-CBD	3.441	CBGV	6.440
10	Boscalid	3.550	CBDV	6.490
11	Carbaryl	2.160	CBGVA	6.500
12	CBC	12.180	Pyrethrin Peak A	6.829
13	CBCO	7.866	CBGQA	7.136
14	CBCVA	11.224	CBE	7.636
15	CBD	8.900	CBCO	7.866
16	CBDA	8.000	CBDA	8.000
17	CBDA-ME	12.314	Pip. But. Peak A	8.327
18	CBDP	11.269	CBGA	8.340
19	CBDV	6.490	CBG	8.704
20	CBE	7.636	CBD	8.900
21	CBG	8.704	THCV	9.160
22	CBGA	8.340	Pyrethrin Peak B	10.480
23	CBGQA	7.136	THCVA	10.646
24	CBGV	6.440	∆9-THCB	10.678
25	CBGVA	6.500	CBN	10.900
26	CBL	12.098	CBCVA	11.224
27	CBN	10.900	CBDP	11.269
28	CBTC	13.178	∆8-THC	11.510
29	Clothianidin	1.451	∆9-THC	11.610
30	Diuron	2.314	Pip. But. Peak B	11.748
31	Imidacloprid	1.492	Permethrin Peak A	11.880
32	Myclobutanil	3.258	CBL	12.098
33	Permethrin Peak A	11.880	Permethrin Peak B	12.175
34	Permethrin Peak B	12.175	CBC	12.180
35	Pip. But. Peak A	8.327	CBDA-ME	12.314
36	Pip. But. Peak B	11.748	∆9-THCA	12.320
37	Pyrethrin Peak A	6.829	∆9-THCH	12.331
38	Pyrethrin Peak B	10.480	∆9-THCP	12.915
39	Spinosyn A	2.480	CBTC	13.178

ISSN: 2522-5782