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Why should I want to analyse these samples of copper ore in nitric acid solution on your multichannel X-ray spectrometer, when know that your sequential automatic ''•jr spectrometer already does it very well
? Answer: Because, in addition to precision, you need maximum analysis speed - and the PW 1250 multi-channel spectrometer can reduce your analysis time per sample by 50%! Not long ago, a leading industrial laboratory came to us with an interesting problem: " H o w does your new PW 1250 Multi-channel X-ray spectrometer compare in precision and speed with your already proven PW 1212, in the routine analysis of Cu, Zn, and Pb in solution?" Our Philips Application Laboratory was eager to demonstrate this. The results? Analytical results obtained from both instruments closely correlated with those obtained chemically. Using the ratio method, Circle No. 12 on Readers' Service Card 48 A
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ANALYTICAL CHEMISTRY
total analysis times for the PW 1212 were 110 seconds per sample; for the PW 1250 multi channel spectrometer, 50 seconds per sample. Do you need speed as well as precision in your routine analysis of solutions or solids? If so, please send for full details. N. V. Philips Gloeilampenfabrieken Scientific and Analytical Equipment Departement Eindhoven, The Netherlands
PHILIPS
PHILIPS
See ACS Laboratory Guide for All Products/Sales Office
