Comparison of Performance of Photodiodes with Different Active Areas Using Acrylic and Quartz Cuvettes for Spectrophotometry in Direct Measurements of Glucose in Water and Human Blood Plasma by Optical Means Using Near-Infrared

Table 3

Downward voltage pattern using acrylic and quartz cuvettes.

Glucose concentration (mg/dl)	Voltage using acrylic cuvette (V)	Decrease using acrylic cuvette (mV)	Voltage using quartz cuvette (V)	Decrease using quartz cuvette (mV)
0	2.233	NA	3.253	NA
100	2.224	9	3.245	8
200	2.212	12	3.235	10
300	2.205	7	3.224	11
400	2.198	7	3.212	12
500	2.189	9	3.205	7
600	2.186	3	3.191	14
700	2.182	4	3.182	9
800	2.169	13	3.169	13
900	2.166	3	3.155	14
1000	2.158	8	3.144	11