On-Line Monitoring of Water in Ethylene Glycols with a ClearView® db Photometer
On-Line Monitoring of Water in Ethylene Glycols with a ClearView® db Photometer
1 PagesPurpose: To determine water content in ethylene glycol (EG) without sample temperature control. Experimental: Our NIR Lab412 spectrometer was used to measure the NIR spectra of 0 to 100% water in EG in the 18- 43°C temperature range using a 10 mm pathlength SST probe. The resulting data were then used to de? ne the wavelengths for our on-line process photometer. Results: The resulting spectra are shown in Figure 1 for 5 concentrations ran
