Comparison between silicone-rubber membranes and plasticized poly(vinyl chloride) membranes containing calix[4]arene ionophores for sodium ion-sensitive field-effect transistors in applicability to sodium assay in human body fluids
✍ Scribed by Y. Tsujimura; M. Yokoyama; K. Kimura
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 526 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0925-4005
No coin nor oath required. For personal study only.
✦ Synopsis
Comparisons have been made between sodium ion-sensitive field-effect transistors (ISFETs) based on silicone-rubber membranes and plasticized poly(viny1 chloride) (PVC) membranes of highly dispersible calix[4]arene ionophores, regarding their applications to sodium assay in blood sera and urine. The silicone-rubber membranes are found to possess great advantages over the PVC membranes on the application of their ISFETs to serum and urine samples. Hardly any potential deviation is found from sodium-ion calibration plots for the silicone-rubber membrane ISFETs on the sodium assay even of undiluted samples, whereas the deviation is serious for the plasticized-PVC membrane ISFJZTs.