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- W2017298070 abstract "In principle electroseparation methods are well suited for the analysis of relatively polar compounds such as underivatized amino acids. These systems provide several benefits such as high performance, the possibility of miniaturization and integration and low cost of analysis. The absence of a derivatization step implicates additional advantages like the avoidance of all types of pitfalls related to this procedure. Unfortunately the analysis of amino acids in their underivatized form also generates some new problems such as the necessity to separate compounds with very similar structures and the need to find detection systems providing sufficient sensitivity for these compounds. The capillary electroseparation method most commonly employed for underivatized amino acids is capillary zone electrophoresis and up to now a substantial number of reports describing the application of this technique for a wide range of different samples can be found. Optimized procedures allowing the separation of the whole set of protein amino acids in a single run have been developed. Detection is mostly performed using either spectrophotometric detectors (mainly because of their presence in most commercially available instruments) or electrochemical detection. Although substantial efforts to improve its sensitivity for underivatized amino acids have been made, spectrophototmetric detection can not be regarded as the best choice for this type of analytes. Electrochemical detection in particular the more recently presented contactless conductivity detector provides better performance. Optimum choice for the detection of underivatized amino acids after their separation using capillary electrophoretic or electrochromatographic methods is the use of a mass spectrometric detector. This can also be seen from the increasing number of publications dealing with this issue." @default.
- W2017298070 created "2016-06-24" @default.
- W2017298070 creator A5021234400 @default.
- W2017298070 date "2005-01-01" @default.
- W2017298070 modified "2023-09-23" @default.
- W2017298070 title "Determination of Underivatized Amino Acids by Capillary Electrophoresis and Capillary Electrochromatography" @default.
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- W2017298070 doi "https://doi.org/10.1016/s0301-4770(05)80012-0" @default.
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