KN-4291 GC for Trace Ethylene Glycol in Used Engine Oil

Overview
  The sample of oil is extracted with water and the analysis is performed on the water extract. A reproducible volume of the extract is injected into a gas chromatograph using on-column injection and the eluting compounds are detected by a flame ionization detector. The ethylene glycol peak area is determined and compared with areas obtained from the injection of freshly prepared known standards.

Introduction:

KN-4291 GC conforms to ASTM D4291 Standard Test Method for Trace Ethylene Glycol in Used Engine Oil. It is used for the measurement of ethylene glycol as a contaminant in used engine oil. The ethylene glycol is supposed to be in the range from 5 to 200 mass ppm.

Standard Calibration:

Prepare glycol standards over the quantification range of 0.01% to 0.2% w/w in motor oil

Temperature information:

1. Temperature range:  Ambient+5℃~ 400℃, Increment: 0.1℃

2. Accuracy: ≤±0.1℃

3. Programmed heating: Constant temperature time between five steps 0~999min, increment: 0.1min,  temperature increment: 0.1℃

Heating rate: max. 40℃/min below 200℃

max. 20℃/min above 200℃

Specification

1. Dimension: 555mm*525mm*485mm

2. Input power: AC220V±7%, 50Hz, 2Kw

3. Net weight: About 52kg

Chromatogram

Chromatogram shows elution of ethylene glycol

Calibration curve of ethylene glycol