Ethylene And Fruit Ripening

How about a little peak into the secret life of plants? Fruit ripening is a form of senescence and signifies the final stage in fruit development. Ripening, of course, eventually leads to spoilage, so there are important commercial reasons to increase and control post-harvest longevity. Complicating matters, post-harvest longevity varies naturally. Strawberries, for example, last…

Pushing The Limits Of Hydrazine Detection At NASA

Ever since Interscan developed a portable hydrazine analyzer for Brooks Air Force Base, way back in the late 1970’s, our instruments have been widely deployed in all facets of hypergol (pertaining to fluid propellant) fuel and oxidizer measurements. A new wrinkle was brought in when NASA requested an instrument with 10 parts-per-billion (ppb) sensitivity. Here…

Using smart gas detection to comply with GSA’s indoor air quality standards

As landlord for the civilian federal government, the Public Buildings Service—a principal division of the General Services Administration (GSA)—owns or leases 8,681 assets, maintains an inventory of more than 370 million square feet of workspace for 1.1 million federal employees, and preserves more than 500 historic properties. For several years, GSA has been in the…

Using Interscan Analyzers For Method 21 Studies

EPA’s Method 21, entitled “Determination Of Volatile Organic Compound Leaks,” calls for a portable instrument to be used for this purpose, and details certain specifications and calibration requirements. “Volatile Organic Compounds,” better known as VOC’s, have been defined by EPA to mean: “[A]ny compound of carbon, excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbides…