ICP-MS is widely used for the multielement analysis of trace metals in drinking waters. The newly designed 7800 ICP-MS accurately measured drinking waters for all required elements at regulated levels, without the need for either reactive cell gases or complex interference equations. Using helium collision mode, selenium detection limits less than 20 parts per trillion (ppt) are now routinely achievable.
Getting accurate IR spectra on monolayer of molecules
April 18th 2024Creating uniform and repeatable monolayers is incredibly important for both scientific pursuits as well as the manufacturing of products in semiconductor, biotechnology, and. other industries. However, measuring monolayers and functionalized surfaces directly is. difficult, and many rely on a variety of characterization techniques that when used together can provide some degree of confidence. By combining non-contact atomic force microscopy (AFM) and IR spectroscopy, IR PiFM provides sensitive and accurate analysis of sub-monolayer of molecules without the concern of tip-sample cross contamination. Dr. Sung Park, Molecular Vista, joined Spectroscopy to provide insights on how IR PiFM can acquire IR signature of monolayer films due to its unique implementation.