Infrared (IR) spectroscopy is a widely used analytical technique both for identification and quantification of a vast range of materials. Qualitest offers a wide variety of laboratory FTIR ...
Richard Scott Perkin (1906-1969) and Charles Elmer (1872-1954), one an investment banker and the other a court reporter, established the Perkin-Elmer Optical Company in 1937, incorporated the firm in ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果