Electrospray Mass Spectrometry for Measurement of Glycohemoglobin
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چکیده
منابع مشابه
Electrospray mass spectrometry for measurement of glycohemoglobin.
With the publication of the results of the landmark 9-year Diabetes Control and Complications Trial (DCCT), the importance of Hb A1c/glycohemoglobin testing in diabetes was firmly established. The DCCT showed, at least in patients with insulin-dependent diabetes mellitus, that the risk for development and progression of the chronic complications of diabetes is closely related to the degree of m...
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An electrospray ionization-mass spectrometric procedure has been developed for determining glycohemoglobin. Whole-blood samples from 78 diabetic and 50 nondiabetic subjects (glycation range 3-15%, as determined by electrospray mass spectrometry) were diluted 500-fold in an acidic denaturing solvent and introduced directly into a mass spectrometer. The resulting mass spectra were then processed ...
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Most electrospray based ambient ionization techniques, e.g., laser ablation electrospray ionization (LAESI), utilize a fixed spray solution composition. Complex samples often contain compounds of different polarity that exhibit a wide range of solubilities in the electrospray solvent. Thus, the fixed spray solution composition limits the molecular coverage of these approaches. Two-barrel theta ...
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Currently two types of chip systems are used in conjunction with MS: out-of-plane devices, where hundreds of nozzles, nanospray emitters are integrated onto a single silicon substrate from which electrospray is established perpendicular to the substrate, and planar microchips, embedding a microchannel at the end of which electrospray is generated in-plane, on the edge of the microchip. In the l...
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Desorption electrospray ionization-mass spectrometry (DESI-MS) was evaluated for the detection of proteins ranging in molecular mass from 12 to 66 kDa. Proteins were uniformly deposited on a solid surface without pretreatment and analyzed with a DESI source coupled to a quadrupole ion trap mass spectrometer. DESI-MS parameters optimized for protein detection included solvent flow rate, temperat...
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ژورنال
عنوان ژورنال: Clinical Chemistry
سال: 1997
ISSN: 0009-9147,1530-8561
DOI: 10.1093/clinchem/43.5.705