Trace-nitrogen-in-argon analyzer
The Series 1200
analyzer from GOWMAC Instrument Co. (www. gowmac.com)
measures trace amounts of nitrogen in argon. Model 1200-A covers
0-2/0-20 parts per million (ppm), and Model 1200-B covers
0-20/0-200 ppm. Detection is based on spectral emission of argon
plasma. The company says it guarantees its analyzers to sensitivity
of 10 parts per billion for nitrogen.
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