Gonadotropin-releasing hormone (GnRH) derivatives are used in cancer therapy, but relatively little is known about their metabolic fate in the organism. This paper describes the application of high-performance liquid chromatography combined with electrospray mass spectrometry to identify the degradation prod...
The coupled-column RPLC-UV analyser has successfully been used in several monitoring programmes.doi:10.1016/0021-9673(93)80713-IE. A. HogendoornU. A. Th. BrinkmanP. van ZoonenJ ChromatogrCoupled-column re-versed-phase liquid chromatography—UV analyser for the deter-mination of polar pesticides...
Condition: New: Never Used Location: Garran, Australia The Supelco BIOshell 1000A ES-C18 guard column pack is designed for efficient chromatography in industrial, healthcare, lab, and dental settings. With ... more Agilent HP-1/SIMDIST (19015Z-221) Capillary Column (15M x 0.53mm x 0.15...
At the end of March, Lab Manager held a “Product Showcase” webinar on “New Chemistries and Improvements in Liquid Chromatography (LC) Columns” featuring a panel of experts from leading providers of LC columns and equipment.
AbouttheColumn TheAlltech ® Anion/RColumnseparatesinorganicanionsbyion chromatography(IC)methods.Thecolumncanbeusedfor bothsingle-columnandsuppressor-basedICapplications. Figure1showstheseparationoffluoride,chloride,nitrite, bromide,nitrate,phosphateandsulfateusingp-hydroxybenzoic acidmobilephasewithconductivity...
Protein A chromatography finds applications beyond this large-scale purification. At the analytical scale, it is used early in the development of mAbs for the high-throughput determination of mAb titer and yield directly from cell culture supernatants, and to purify µg amounts of material for ...
There are no human participants, animals or client owned animals, human data, or human tissue involved in this study; hence, no ethics approval and consent of any participant or client was required. The general ethics regarding writing of manuscript and data generated and used in the study ar...
For analysis of the proteolytic enzyme activity of individual proteases in mixtures, the on-line combination of size-exclusion LC and ion-exchange chromatography under non-denaturing conditions and a bioassay has been developed by Schebb et al. [64]. Bioassay readout by UV detection is based on...
The ISO 16000-6 standard gives directions to adapt the analysis of volatile organic compounds (VOCs) in indoor and test chamber air to very volatile organic compounds (VVOCs). The same techniques with sorbent-based active sampling, thermal desorption and gas chromatography coupled with mass spectrom...
The dissolved methane (CH4) plume rising from the crater of the blowout well 22/4b in the Central North Sea was mapped during stratified water column conditions. Geochemical surveys were conducted close to the seafloor at 80.3 m water depth, below the thermocline (61.1 m), and in the mixed...