Plasma cystatin C was measured turbidimetrically on a Hitachi 704 instrument, and creatinine was determined enzymatically on the same instrument. |
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Sulfate concentration was determined turbidimetrically, and Fe concentration was determined by atomic adsorption spectrometer. |
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Instead of observing the formation of the fibrin thread, the clotting reaction was monitored turbidimetrically by measuring the absorbance at 412 nm. |
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