Your local gas generation partner


Sweat diffusion through snow

The use of dogs in search and rescue (SAR) is a valuable and vital component when search teams are out looking for victims buried under snow. 

These victims are invisible to the human eye who would usually rely on pushing poles into the ground to help locate the victim. The canine however, relies on its sense of smell and can sniff out victims lying at a depth of 2-4m and in extreme cases they have been known to detect victims buried under 10-12m of snow.

In a recent blog post Spectroscopy Now reported that the dog works by sniffing out traces of body odour which diffuse through the snow to the surface. Human odour studies have been carried out and many of its components have been identified, it is believed that it is the combination of components that the dog can sense. How the odour moves through the snow is still unclear, however researchers from the University of Venice and the University of Nice-Sophia Antipolis have carried out analysis on two compounds which are found specifically in body odour.

rescue dog

Using a GC-MS they tested the diffusion of the odour compounds through a core of ice. They soaked cotton pads with the compounds and placed them at the bottom of the ice core alongside a small heater set at body temperature. Results indicated that the compounds behaved differently when moving through the snow but the key finding is that this method is capable of measuring the sweat biomarkers through the snow. This could lead to a much better understanding of how search and rescue animals find their victims which in turn could give additional hope to those trapped.

GC-MS techniques are used for many analysis and is used to separate mixtures of individual components using a temperature controlled capillary column. Gas is used to push the sample though the GC.  Gas can be supplied via a laboratory gas generator or by traditional gas methods such as cylinders. There are many advantages of using a Peak laboratory gas generator over cylinders such as reduced downtime, consistent purity at a steady flow and uninterrupted analysis as gas is supplied as and when required. 

Peak's Precision series of laboratory gas generators have been designed specifically for GC applications. They combine convenience and reliability in a stackable and modular design and offer nitrogen, hydrogen, zero air and compressed air models at various flow rates to suit your application. Recommendation of the correct model depends on the use of the product. For most GC detectors, the standard grade purity is sufficient, but for carrier gas use, the trace models are recommended to ensure the lowest possible baseline and precision in your results.

No matter your GC analysis you can rest assured that Peak can cater for your needs with its Precision series of GC laboratory gas generators. 

To find out more about Precision please click here and to read more about how Peak's Precision series is supporting GC-MS analysis in labs across the world read our William Tracey user story.

Post a comment

Please enter the code as shown:


No Comments


Peak Scientific ASMS conference Peak Scientific scoops Scottish Exporter of the Year Award Scottish Engineering Awards Nitrogen Trace Product Catalogue HPLC Geneva International Track Fastest Growing Private Business Gas Chromatography Nitrogen Carrier Gas Hydrogen cylinders Dr Ed Connor Awards JASIS Japan Precision video GC Austria (MSACL) conference Birmingham Helium gas agilent generator celebrate gas agilent tardis peak Dusty Beijing Nitrogen Hydrogen ebf gas generation #dustyontour lab gas nitrogen hydrogen China #dustyontour Melbourne laboratory Peak logo Matterhorn LC-MS gas generator analysis laboratory gas generator modified atmosphere packaging laser cutting electronic component assembly India Exhibition lab National Convention South African Chemical Institute SACI lab gas bottling sparging flushing storing wine Christmas 12 days Rudolph christmas xmas new periodic elements song music universe generation Scotland pancake science Australia Proteomics show valentines love Price increase bulk gas Agilent Safety Mass Spectrometry Sciex sciex tour Award Gas Generator Innovation Queen's Award on-site adsorption PSA safety on-site nitrogen generation CMS Analytica Germany gas generators exhibitions Munich Genius 3010 Ant Teknik Eurasia Istanbul Turkey Hydrogen trace nitrogen trace careers football GC-MS food quality Genius Shimadzu 3051 Kemiportalen pairing search find Sweat diffusion through snow GC analysis Gas chromatography capillary column cylinder AZOM MRX labs gas chromatography wine cork no-taint Amorim NDtech jobs cancer dogs Infinity showcase product Nihonium Moscovium Tennessine Oganesson The International Union of Pure and Applied Chemistry Tomatoes La Tomatina Chromatography today gas cylinder BioTechniques User Manuals Stoller Biomarker Discovery Centre MS table Mass Spec Thermal Desorption Sampling Corona CAD Detector Singapore training Solaris china precision nm32la service Protected proteomics peak protected NMR spectroscopy Tianjin Ionization Mass Spectrometry Conference AIMS 2016 high-purity gas After-sales maintenance seminar Genius series LCMs Genius Nitrogen Generator Precision Hydrogen Generator maintenance ELSD Micro Mass Spec zero air i-FlowLab whole of lab register flexflow elsd solaris mass spec high-performance liquid chromatography N2 Solaris Nitrogen Northern Flicker bird Tartarian Morrow's Honeysuckle APS Proteomics Lorne exhibition FlexFlow helium Valentine's Day mass spectrometry hydrogen generator nitrogen generator chromatography customer service expertise warranty hplc Europe food gc lcms gc-ms China-lab GCMS zeroair iflow Peak SCientific TOC LC-MS Chromatography Gas generators asms launch reviews NM32LA genius selectscience asia oil & gas n2 oxygen ICP-MS collision Qatar Select Science Complete Protected generators event university singapore USA Cylinders switch design technology Scientific show after service support engineer OEM chromatographie Values brand promise protected CPL-SM Thermo Scientific Aerosol detector Cannabis Quality Control Testing LCMS SM-PCI hydrogène gaz de collision Garantie générateur de gaz Gasgenerator Nitroge iflow lab Careers Recruitment Sample Evaporation ICP CO2 Analyzer FT-IR TOC hygrogen carrier gas i-flowlab azote LC_MS
To Top