Table 1.

Validation results of MC-LR detection using GF electrochemical biosensor and FT-MS method.

	GF biosensor value (μg /L)	Recovery (%)	FT-MS value (μg /L)	Recovery (%)
Tokyo tap water	0.0982 ± 0.0011	98.2	0.0993 ± 0.0009	99.3
Inba lake water	0.0963 ± 0.0023	96.3	0.0987 ± 0.0013	98.7
Sanshiro pond water	0.0935 ± 0.0031	93.5	0.0955 ± 0.0029	95.5
Shinobazu pond water	0.0941 ± 0.0013	94.1	0.0963 ± 0.0021	96.3