Almost any solvent which is used during peptide synthesis can be determined quantitatively.

Results:
Content of solvents [ppm], LOD, LOQ

What we need:
1mg of the sample if only one kind of solvents needs to be determined.
2mg of the sample if more than one kind of solvents needs to be determined.
The list of solvents which are to determine.

The following solvents can be determined:
Methanol, ethanol, diethylether, acetone, 2-propanol, t-butanol, dichloromethane, acetonitrile, methyl-t-butyl ether, n-hexane, diisopropylether, methyl-ethylketone, ethylacetate, 2-butanol, chloroform, tetrahydrofurane, cyclohexane, isopropylacetate, heptane, n-butanol, toluene, pyridine, butylacetate, dimethylformamide, thioanisol, n-methyl-pyrrolidone, dioxane, i-hexane, triethylamine, 2-ethylbutanol, xylene, anisole, triisopropylsilane, phenole, diisoprpylamine (DIPEA), dimethylsulfoxide (DMSO)

• For description of the method download PDF.