Ethyoxylated Alchols

**SEDEX ELS DETECTOR APPLICATIONS**
Effect of Low Operating (Evaporative) Temperature
Ethyoxylated Alcohols
Conditions Column: Lichrospher NH2, 250 x 4.6 mm Eluent: Hexane/2- Propanol/ Water Flow rate: 1ml/min Pressure: 2 bars Gas: Nitrogen Peaks, mg/ml R₁₂ OH, 10.5 R₁₂ (OCH₂CH₂)OH, 10.2 R₁₂ (OCH₂CH₂)₂OH, 11.8 R₁₂ (OCH₂CH₂)₃OH, 9.2 R₁₂ (OCH₂CH₂)₄OH, 10.2 R₁₂ (OCH₂CH₂)₆OH, 10.4 R₁₂ (OCH₂CH2)₈OH, 9.5 R₁₂ (OCH₂CH₂)₉OH, 13.0	Operating Temperature = 30°C
	Operating Temperature = 60°C
Comparison of the above chromatograms clearly shows that lower operating (evaporative) temperature can greatly enhance analyte response, thus enabling significantly more accurate quantitative determinations. The unique design features of SEDEX ELS detectors allow them to operate at the lowest possible evaporative temperatures.


Ethoxylated Alcohols C16 E7
	Conditions Column: Lichrospher 100 Diol-5µm (4x125mm) Eluent: A: Hexane / B: CHCl₃ / iPrOH(2%1) (10 to 80%(A) in 25min.) Flow rate: 1ml/min Nebulization gas: Nitrogen Temperature: 35°C

[ Selected Applications ] [ Sedex Main Page ] [ Thomson Main Page ] [ Email ] [ Request Form ]