Endress+Hauser Analytik Jena multi N/C, Руководство по эксплуатации, Страница: 16 / 106

Function and setup multi N/C pharma UV
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3.1.1 UV reactor with control gear
The analyzer multi N/C pharma UV features a specially developed UV reactor with
integrated UV radiation source from quartz glass. The reactor directly surrounds the UV
radiation source. Wavelengths of 185 nm and 254 nm are used. This results in a very
efficient and high radiation density and thus a high digestion capability|
The reactor has two inlets and one outlet. One inlet is connected to the syringe pump
for feeding the sample and reagent. The carrier gas supply takes place via the second
inlet. At the top outlet of the reactor the measuring gas is routed via hose connections
to the TIC condensate container.
Fig. 2 UV reactor with control gear (right-hand side wall open)
3.1.2 Components for sample preparation
Sample feeding in the analyzer multi N/C pharma UV takes place via flow injection
over a syringe pump with 9-port valve. The injection volume is 0.05 to 20 ml. For
sample volumes
≤
1.5 ml system water is additionally entered into the reactor with
each metering.
The hose connections are attached to the 9 port valve using Fingertight screw
connections. The syringe body is made of glass and replaceable.