Potentiometric Multisensory Systems with Novel Ion-Exchange Polymer-Based Sensors for Analysis of Drugs

Table 3

The coefficient estimates from the multivariate calibration equations, taking into account interference of components to the responses of sensors 𝐴_𝑘 and 𝐵_𝑘.

Test solution	LysHCl (pC1) + KCl (pC2) +				ThiaminCl (pC1) + KCl			NovHCl (pC1) + KCl			Niacin (pC1) +
	NaCl (pC3) + MgSO4 (pC4)				(pC2) + NaCl (pC3)			(pC2) + NaCl (pC3)			PyridoxinHCl (pC2)
Sensor	A1	B1	B2	B3	A1	B1	B2	A1	B1	B2	A1	A2
𝑏0±Δ𝑏0	−121±30	359±4	−48±4	266±6	−123±10	319±35	−61±3	−122±20	359±8	−90±12	−130±10	−83±10
𝑏1±Δ𝑏1	6±6	—	—	−2±2	24±5	−13±10	9±1.6	14±8	—	15±6	25±5	7±5
𝑏2±Δ𝑏2	32±6	−42±4	13±3	—	15±5	5±4	21±1.6	16±8	−41±8	14±4	−9±5	−20±5
𝑏3±Δ𝑏3	12±6	—	—	—	26±5	—	19±1.6	21±8	—	30±6	—	—
𝑏4±Δ𝑏4	18±6	—	—	−20±2	—	—	—	—	—	—	—	—
𝑏12±Δ𝑏12	—	—	—	—	−5±1.7	−7±6	−4±0.6	−6±4	—	—	−10±1.7	−5±1.7
𝑏13±Δ𝑏13	−9±1.1	—	—	—	−4±1.7	—	−4±0.6	−6±4	—	−9±2	—	—
𝑏14±Δ𝑏14	−4±1.1	—	—	—	—	—	—	—	—	—	—	—
𝑏23±Δ𝑏23	−4±1.1	—	−9±1.5	—	−7±1.7	–	−8±0.6	−5±4	—	−9±2	—	—
𝑏24±Δ𝑏24	−4±1.1	—	—	—	—	—	—	—	—	—	—	—
𝑏34±Δ𝑏34	2±1.1	—	—	—	—	—	—	—	—	—	—	—
Δ𝐸/𝐸,%	2	3	7	0.2	6	6	5	5	2	4	3	0.6