Analysis of Trace Elements in Water using Ultra Thin Film (1)

Introduction

When analyzing water solution using the EDX, the detectable and quantifiable concentration range was in the ppm or higher level for the conventional solution measuring method and the spotting filter paper method, where the sample was spotted and dried on filter paper. By replacing the filter paper with ultra thin polymer film, however, quantum improvements have been made to the S/N ratio, enabling detection and quantification to the ppb level. The following introduces the pretreatment and the qualitative results and lower detection limits for trace elements in a sample.

March 8, 2006 GMT