ResourceLife Sciences
Validation of Automated Liquid-Liquid Extraction of 25-Hydroxy Vitamin D from Whole Blood or Spiked BioCell Material Samples Using VERSA Workstation
4 May 2015Measurement of circulating levels of 25-hydroxy vitamin D is important in the diagnosis of intestinal mal-absorption and vitamin D deficiency or intoxication in humans. This has led to exponential growth in clinical diagnosis tests for 25-hydroxyvitamin D in blood serum. Some laboratories have developed assays using LC-MS/MS tandem mass spectrometry or HPLC. However, sample preparation to meet the requirements of these innovative methods is a cumbersome process if performed manually. To assist the sample preparation, this application note presents the VERSA Workstation for automated liquid-liquid extraction of 25-hydroxyvitamin D from blood samples.
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UHPLC and HPLCHigh performance liquid chromatography (HPLC) and ultra high performance liquid chromatography (UHPLC), also known as UPLC, are analytical techniques used to separate, identify and quantitate components of complex mixtures including biological samples such as proteins and lipids as well as chemical mixtures of pesticides, drugs and oils. Both techniques are liquid chromatographic methods but differ by operating pressures (HPLC < 6000 psi < UHPLC ). Components of HPLC and UHPLC systems include columns, detectors, pumps, autosamplers and column heaters. Explore a range of UHPLC and HPLC columns for your specific sample needs including reverse phase, normal phase, ion exchange, HILIC, ion exclusion and size exclusion columns. For more specialized HPLC, explore FPLC, countercurrent LC and simulated moving bed systems. Find the best UHPLC and HPLC equipment in our peer reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.HematologyIn Haematology / Hematology, complete blood cell counts (or full blood counts) are obtained using automated blood count analyzers to enumerate blood cell types. Hematology also encompasses haemostasis and coagulation, thrombophilia and hemophilia, plasma viscosity and ESR analysis, hemoglobinopathies, cell morphology and haematinic measurement.Robotic InstrumentsRobotic instruments can be used for high-throughput automation of many lab processes. Such processes use instruments for assays like cell based assays and ELISA, for sample preparation like shakers, centrifuges and incubators, and for analysis such as sequencing and western blot analyzers. Useful features of robotic instruments include speed, reproducibility, barcode readers, software and automation.Blood AnalysisThe analysis of blood is vital for many areas of life sciences and forensic investigations. Blood samples can be tested for a number of different reasons such as diagnosis, glucose levels, cholesterol and drug testing.Vitamin D