Determination of melamine by high-performance liquid chromatography-mass spectrometry in urinary calculi / 南方医科大学学报
Journal of Southern Medical University
;
(12): 125-127, 2012.
Article
in Chinese
| WPRIM
| ID: wpr-265680
ABSTRACT
<p><b>OBJECTIVE</b>To establish a high-performance liquid chromatography-mass spectrometry (LC/MS)-based method for efficient determination of melamine in urinary calculi in children taking melamine-contaminated formula milk powder.</p><p><b>METHODS</b>LC/MS was employed to determine the contents of melamine in urinary calculi surgically removed from 17 children with a history of taking melamine-contaminated milk powder and in 4 samples of uric acid stone from adults. The positive ionization mode of electro-spray ionization source was used, and the limit of melamine determination was 0.1 mg/kg.</p><p><b>RESULTS</b>No melamine was detected in the 4 uric acid stone samples from adults. Melamine was detected in 4 samples of urinary calculi from the 17 children, with the concentration ranging from 0.8 to 64 mg/lkg.</p><p><b>CONCLUSION</b>LC/MS is simple and effective for detecting melamine in urinary calculi, which is helpful to the treatment and follow-up.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Mass Spectrometry
/
Triazines
/
Urinary Calculi
/
Food Contamination
/
Chemistry
/
Chromatography, High Pressure Liquid
/
Dairy Products
/
Methods
Limits:
Female
/
Humans
/
Infant
/
Male
Language:
Chinese
Journal:
Journal of Southern Medical University
Year:
2012
Type:
Article
Similar
MEDLINE
...
LILACS
LIS