Abstract
Capillary electrophoresis was used in this study to separate urinary myoglobin from hemoglobin based on its electrophoretic mobility. Urine was applied directly without any treatment. The separation was accomplished in less than 7 min. Myoglobin extracted from human muscle tissues was separated, in a borate buffer 150 mM, pH 8.7 containing 0.5% polyethyleneglycol at 6 kV, into two peaks (MI and MII) which were also resolved far from hemoglobin. Upon standing at room temperature, MII converted into MI. Horse myoglobin eluted close to MI. The addition of polyethyleneglycol to the buffer enhanced the separation and increased the peak height of myoglobin. Optimum conditions for the separation are discussed. The method is suitable for routine clinical analysis because of its simplicity and speed.
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