A selective pretreatment method for determination of endogenous active brassinosteroids in plant tissues: double layered solid phase extraction combined with boronate affinity polymer monolith microextraction

Table 1 Linearity, LODs and LOQs of BRs

Analytes	Linear range ng/mL (ng)	Regression data			LOD ng/mL (pg)	LOQ ng/mL (pg)
Analytes	Linear range ng/mL (ng)	Slope	Intercept	R value	LOD ng/mL (pg)	LOQ ng/mL (pg)
28-norBL	0.4-500 (0.32-400)	0.0581	0.0081	0.9991	0.09 (7.2)	0.47 (37.6)
28-norCS	0.4-500 (0.32-400)	0.3248	−1.4261	0.9974	0.02 (1.6)	0.12 (9.6)
BL	0.4-500 (0.32-400)	0.1495	0.1126	0.9991	0.05 (4.0)	0.27 (21.6)
CS	0.4-500 (0.32-400)	0.0500	0.1434	0.9995	0.02 (1.6)	0.11 (8.8)
28-homoBL	0.4-500 (0.32-400)	0.0170	0.1574	0.9953	0.04 (3.2)	0.21 (16.8)

ISSN: 1746-4811