Ichemco Test Method

Ethyleneimine Content

Id:	112
Measure unit:	ppm
Procedure:	Standard solution preparation: Pipette 10 µl of Ethyleneimine Standard into a 10 ml volumetric flask, make to volume with dioxane and homogenize. Label this solution as SOLUTION A. Pipette 1,2 ml of Solution A into a 100 ml volumetric flask, make to volume with dioxane and homogenize. Test solution: dissolve 1,2 g of sample in 1 ml of dioxane. Chromatographic ocnditions: Helium flow: 19 ml/min Injector temperature: 150°C Detector temperature: 300°C Oven temperature: 100°C Run time: 20 min Injection volume: 1.0 µl Retention times: Dioxane: about 12 min Ethyleneimine: about 3.2 min
Remarks:
Instruments:	Gas-Chromatograph - Column 28% PENWALT 223 4% KOH GAS R80/100 Standard Ethyleneimine Dioxane Pipette 10 and 100 ml volumetric flask
Recordings:	Calculation EI (ppm) = 10 x A(EI)TS/[C(EI)TS x A(EI)SS] EI = Ethyleneimine A(EI)TS = Peak area of Ethyleneimine in the test solution A(EI)SS = Peak area of Ethyleneimine in the standard solution C(EI)TS = Concentration of Test solution (g/ml) EI Density = 0,83 g/ml Concentration of EI in the standard solution = 10 µg/ml Specification EI < 100 ppm
External references:

Rev. 2 - 17/09/2014