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A new printed version of the English "Vials and caps" brochure is now available. Ask for your personal copy or download the catalog from our website!
Save time and conveniently download your certificate of conformity for all vials, inserts, closures and septa from our website for your own ISO documentation.
With increasing costs of solvents, their disposition and with the safety issues connected to high usage of solvents, reduction of sample volumes has become more and more popular. In addition chromatography efficiency increases with lower sample volumes, as long as signal intensity is guaranteed to be strong enough to generate a chromatographic peak that can be detected.
Samples with a lower volume than 1.0 mL have to be delivered to the autosampler in appropriate micro vials, in order to offer the needle ideal conditions for sample removal. During selection of the most suitable product, safety, handling and price are important factors.
Pharmacopoeias like the United States Pharmacopoeia (USP) or the European Pharmacopoeia (EP) contain HPLC methods for the analysis of pharmaceuticals. We show for eight drugs the successful separation from their impurities and the method optimmization with our HPLC columns according to USP or EP.
Vitamin D stands for a group of fat-soluble vitamins, the so-called calciferols. These include the most important forms vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). Vitamin D plays an essential role in regulating the calcium level in the blood and in bone formation. It is also involved in other metabolic processes and in the protein biosynthesis.
Originally headspace analysis was only carried out with crimp neck vials due to the temperature reistance of the caps (aluminum with an appropriate septa type) and the gas tightness being expected by endusers to be the highest. However, with the success story of the CTC Combi PAL and identically constructed autosamplers that require magnetic caps for transportation, consumables startet to change.
The determination of the sum of 20 PFAS from water by SPE and LC-MS/MS according to DIRECTIVE (EU) 2020/2184 is the latest application development in the area of PFAS analysis at MACHEREY-NAGEL.
Now find your CoA of CHROMAFIL® syringe filters on the product detail page
Tutorial on how to find applications easy and fast
CHROMABOND WAX for PFAS from water, soil and sediments
Video on how to use the MN vials and caps website and its tools
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