The optical rotatory dispersion in the range 630-340 mp has been measured for aqueous solutions of the tetramethylammonium salt of a-poly-L-glutamic acid to compare the effects produced by added tetramethylammonium chloride and magnesium chloride at equivalent ionic strengths. The addition of magnes
Effect of poly(α-D-glutamic acid) on the polarographic reduction of 3,6-diaminoacridines
✍ Scribed by Shigetada Fujii; Nobuhide Tatsumoto; Kiwamu Yamaoka
- Publisher
- Elsevier Science
- Year
- 1988
- Weight
- 813 KB
- Volume
- 244
- Category
- Article
- ISSN
- 0022-0728
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The effect of the binding of the alkaline earth cations and of cupric and lanthanum ions on the dissociation of the sidechain carboxyl groups in a-poly-kglutamic acid has been measured by a modified titration technique. The a-poly-bglutamic acid was pretitrated with the strong base of a weakly bound
The absorption spectrum of the aqueous solution of acridine orange (A0)-poly-(D-glutamic acid) (PDGA) complex a t pH 4.5 (helix form) did not show any wavelength shift, but at pH 7.5 (coil form) changed to the absorption curve of the helix form by compression up to 4500 atm. The ionization degree of
## Abstract The effect of magnesium ion binding on the dissociation of side chain carboxyl group in α‐poly‐L‐glutamic acid has been measured by a modified titration technique involving pretitration of the polyacid with a strong base of a weakly bound counterion followed by addition of aliquots of t