Sigma solvents for Pesticide Residue Analysis (PRA solvents) are glass-distilled and extensively tested by GC/ECD to ensure minimum halogenated residue levels (<10 ng/Liter unless otherwise indicated). All PRA solvents are available in amber glass bottles.
00689 Acetonitrile for residue analysis, ≥99.9% (GC) 99.9 Analytical, Trace Analysis pricing
77397 Petroleum ether for residue analysis, bp 40-60 °C Analytical, Trace Analysis pricing
320676 2,2,4-Trimethylpentane PRA grade, ≥99% 99 Practical pricing
324086 2-Propanol 99.9%, PRA grade 99.9 Practical pricing
323969 Acetone PRA grade, 99.9% 99.9 Practical pricing
316458 Acetonitrile PRA grade, ≥99.9% 99.9 Practical pricing
324019 Chloroform PRA grade, ≥99.9%, contains amylenes as stabilizer 99.9 Practical pricing
320633 Cyclohexane ≥99.5%, PRA grade 99.5 Practical pricing
323993 Dichloromethane PRA grade, ≥99.9%, contains 50-150 ppm hydrocarbon as stabilizer 99.9 Practical pricing
324027 Ethyl acetate PRA grade, ≥99.5% 99.5 Practical pricing
324043 Heptane PRA grade, 96% n -isomer basis, ≥99.9% C7 isomers basis 96, 99.9 Practical pricing
316490 Hexane, mixture of isomers PRA grade, 99.5% C6 isomers Practical pricing
324051 Methanol PRA grade, ≥99.9% 99.9 Practical pricing
316504 Pentane PRA grade, 98.0% n -pentane basis, >99.5% C5 isomers 98 Practical pricing
320668 Petroleum ether PRA grade Practical pricing
316466 tert -Butyl methyl ether PRA grade, ≥99% 99 Practical pricing
324094 Toluene PRA grade, ≥99.8% 99.8 Practical pricing
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