Research Article

A Highly Sensitive Electrochemical Sensor Based on Electrocatalytic Reduction Effect of Cu2+ on Trace Determination of Malathion in Soil and Other Complex Matrices

Table 1

Figures of merits (µg L−1) of the developed SW-CSV and some of the published methods for malathion determination.

MethodLOD (M)Linear range (M)Reference

Spectropoto9.1 × 10−83.3 × 10−7 – 3.6 × 10−6[26]
DPV3.3 × 10−81.0 × 10−7 – 8 × 10−7[41]
Electrochemical Senso1.7 × 10−106.0 × 10−10 – 2.4 × 10−8[35]
LC-MS3.8 × 10−77.6 × 10−7 – 6.06 × 10−6[59]
UPLC-MS6.06 × 10−83.0 × 10−7 – 3.0 × 10−6[60]
DLLME1.5 × 10−96.0 × 10−9 – 7.6 × 10−7[5]
FTIR3.63 × 10−51.03 × 10−9 – 2.0 × 10−7[17]
FT-Raman5.45 × 10−9[19]
SW-CSV3.1 × 10−10−1.03 × 10−9 – 2.0 × 10−7Present work

UPLC-MS = ultra-performance liquid chromatography-mass spectrometry; FTIR = Fourier transform infrared; CPE = cloud point extraction; LC-API-MS = liquid chromatography atmospheric pressure ionization mass spectrometry; HPLC = high-performance liquid chromatography, FT-Raman = Fourier transform-Raman; DLLME = dispersive liquid-liquid microextraction, CPE-GC-FPD = cloud point extraction-gas chromatography with flame photometric detection.