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Quantitative estimation of clinically important monosaccharides in plasma by rapid thin layer chromatography
Annals of Clinical Biochemistry
|March 1, 1978
Summary
This study presents a new method for quantifying key sugars in blood using thin-layer chromatography and densitometry. The technique offers a sensitive and reproducible way to measure monosaccharides like glucose, galactose, and fructose.
Area of Science:
- Clinical Chemistry
- Analytical Chemistry
- Biochemistry
Background:
- Accurate quantification of monosaccharides in biological samples is crucial for diagnosing and monitoring various metabolic conditions.
- Existing chromatographic methods may lack the sensitivity, speed, or adaptability for simultaneous analysis of multiple clinically relevant sugars.
Purpose of the Study:
- To develop and validate a direct densitometry method for the quantitative estimation of clinically important monosaccharides in plasma or whole blood.
- To adapt thin-layer chromatography techniques for improved reproducibility and sensitivity in monosaccharide analysis.
Main Methods:
- Quantitative estimation of monosaccharides using direct densitometry of chromatographically-separated zones on silica gel thin layers.
- Adaptation of paper chromatography techniques for thin-layer applications, incorporating peak height measurement with internal marker correction.
- Simultaneous analysis of glucose, galactose, fructose, D-xylose, and 3-O-methyl glucose from small sample volumes (0.5 ml).
Main Results:
- The method allows for the estimation of multiple monosaccharides within 3-4 hours.
- Achieved a coefficient of variation of 3-6% depending on sugar concentration, with a sensitivity limit of approximately 0.05 mmol/l.
- Satisfactory performance and recovery rates were observed when compared to an automated glucose oxidase/peroxidase system for glucose quantification.
Conclusions:
- The developed thin-layer chromatography method provides a reliable, sensitive, and efficient approach for the simultaneous quantitative estimation of clinically important monosaccharides.
- This technique offers a valuable alternative for routine clinical laboratory analysis, particularly for monitoring conditions involving abnormal sugar metabolism.
- The method's adaptability and satisfactory performance highlight its potential utility in diverse diagnostic and research settings.