Headspace sampling allows you to introduce volatile compounds automatically, from virtually any sample matrix, directly into a GC or GC/MS. The 7697A Headspace Sampler is the newest headspace technology in Gas Chromatography. Based on the architecture of the market leading 7890A GC and 7693A ALS line of products, this sampler has been designed to exceed the expectations of the most demanding laboratories. The presence of Electronic Pneumatic Control in the 7697A ensures that your GC systems provide the best chromatographic performance - and the best results available on the market.