Analytical Strategies for the Determination of Arsenic in Rice

Table 2

Speciation of arsenic in rice using HPLC-ICP-MS.

Arsenic species	Sample preparation	Figures of merit	Reference
As(III), As(V), DMA, MMA, AsC, and AsB	Microwave digestion with 1% (v/v) HNO3	LOD: 0.1–0.3 g/Kg; LOQ: 0.5–1.5 g/Kg; Recovery: 91.4–114.3%	[59]
Total As, As(III), As(V), DMA, MMA, and AsB	Pressurized liquid extraction sonication	Recovery: 71.8–104.5%	[62]
As(III), As(V), DMA, and MMA	Microwave digestion with 10 mL of 2% (v/v) HNO3	LOD: 0.03 g/L for total As	[60]
As(III), As(V), MMA, and DMA	Sonication by ultrasound probe	LOD: 0.05–0.2 g/Kg; Recovery: 82–99%	[63]
As(III), As(V), MMA, and DMA	Extraction with 1% HNO3	LOD: 0.01–0.07 g/L; Recovery: 95–100%	[61]
MMA, DMA, As(III), and As(V)	Digestion of the samples using pressurized microwave system	LOD: 0.5–1.0 g/Kg; Recovery: 94–98%	[46]

LOD: limit of detection; LOQ: limit of quantification.