Spectrophotometric Determination of Palladium(II) Ions Using a New Reagent: 4-(N’-(4-Imino-2-oxo-thiazolidine-5-ylidene)-hydrazino)-benzoic Acid (p-ITYBA)

Table 1

Selectivity of Рd(ІІ) spectrophotometric determination using p-ITYBA (C_Рd(ІІ) = 2.50·10⁻⁵ mol·L⁻¹; С_p-ITYBA = 7.50·10⁻⁵ mol·L⁻¹; C_NаCl = 0.10 mol·L⁻¹; С_UBS = 0.020 mol·L⁻¹; рH = 7.0; l = 1 cm; λ = 450 nm).

Foreign ion	Molar ratio ion: Pd(II)	Foreign ion	Molar ratio ion: Pd(II)
Рt(ІV)	1	Cu(ІІ)	>100
Rh(ІІІ)	1.25	Cr(ІІІ)	10
Іr(ІV)	1	Ca(II)	>100
Ru(ІV)	2	Mg(ІІ)	>100
Уb(ІІІ)	5	Ba(II)	>100
Gа(ІІІ)	10	Аl(ІІІ)	>100
Аu(ІІІ)	15	EDTA	>100
Fe(III)	>100	F^−	>100
Nі(ІІ)	75	NО3^−	>100
Cо(ІІ)	>100	SiO3^2−	>100
Mn(ІІ)	10	Cіt^3−	>100
Cd(II)	25	Tаrt^2−	>100
Pb(II)	10	C2О4^2−	>100
Zn(ІІ)	50	Sаl^−	>100