Enantioselective Potentiometric Membrane Electrodes Based on Antibiotics for the Determination of L- and D-Glyceric Acids

Table 5

Recovery of L-glyceric acid in serum and urine samples, (%)^a.

Type of; sample	Sample no.	% Recovery, L-GA
		Standard method [24]	EPMEs
Serum samples	1	98.47	98.52±0.04
	2	98.15	98.08±0.08
	3	98.02	98.00±0.06
Urine samples	4	99.30	99.25±0.02
	5	99.50	99.49±0.03
	6	99.45	99.50±0.03
	7	99.86	99.87±0.02
	8	99.12	99.13±0.01
	9	99.89	99.99±0.02

^aAll measurements were made at 25˚C; all values are the average of ten determinations.