Validation of a multi-residue method to determine deltamethrin and alpha-cypermethrin in mosquito nets by gas chromatography with electron capture detection (GC-μECD)

Table 4 Active ingredient recovery from coated and incorporated nets samples

Samples	Interceptor^®		PermaNet^®2.0		Netprotect^®
	Coated		Coated		Incorporated
	Alpha-cypermethrin		Deltamethrin		Deltamethrin
	g a.i./kg of net	mg a.i./m²of net	g a.i./kg of net	mg a.i./m²of net	g a.i./kg of net	mg a.i./m²of net
S1	4.20	168	1.84	55	1.48	65
S2	4.31	172	1.94	58	1.53	67
S3	5.66	226	2.20	66	1.44	63
S4	5.10	204	1.58	47	1.42	62
S5	4.26	170	1.53	46	1.37	60
Mean	4.71	188	1.82	55	1.45	64
Recovery (%)	94		99		80

ISSN: 1756-3305