. 2018 Feb 14;8(13):7243–7251. doi: 10.1039/c7ra11896a

The determination and recovery of Co(ii) in green leaf vegetable samples by the proposed method and FAAS (n = 3).

Sample	Spiked (mg g⁻¹)	VALS-DLLME			FAAS
Sample	Spiked (mg g⁻¹)	Found (mg g⁻¹)	Recovery (%)	RSD (%)	Found (mg g⁻¹)	Recovery (%)	RSD (%)
Mint	0.00	ND^a	—	—	ND	—	—
	0.25	0.246	98.4	0.78	0.249	99.7	1.21
	0.50	0.495	99.0	1.67	0.496	99.2	2.65
	1.50	1.507	100.5	1.87	1.512	100.8	2.13
Spinach	0.00	ND	—	—	ND	—	—
	0.25	0.226	90.2	0.98	0.228	91.3	0.59
	0.50	0.491	98.2	2.13	0.507	101.3	1.24
	1.50	1.503	100.2	2.43	1.521	101.4	2.57
Kale	0.00	ND	—	—	ND	—	—
	0.25	0.236	94.2	2.53	0.248	99.1	0.76
	0.50	0.489	97.9	2.36	0.491	98.1	1.43
	1.50	1.554	103.6	1.89	1.523	101.5	0.98
Cabbage	0.00	ND	—	—	ND	—	—
	0.25	0.242	96.8	1.09	0.246	98.4	1.32
	0.50	0.496	99.1	2.34	0.506	101.2	2.36
	1.50	1.456	97.1	1.54	1.556	103.7	2.41
Chinese cabbage	0.00	ND	—	—	ND	—	—
	0.25	0.241	96.4	1.24	0.244	97.6	0.97
	0.50	0.493	98.6	2.32	0.503	100.6	1.23
	1.50	1.498	99.9	1.14	1.515	101.1	1.09

ND: not detected.