Spectrophotometric determination of palladium after solid-liquid extraction with 1-(2-pyridylazo)-2-naphthol at 90°C

Jinzhang Gao, Bo Peng, Haiyan Fan, Jingwan Kang, Xudong Wang

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

An effective spectrophotometric determination of palladium with 1-(2-pyridylazo)-2-naphthol (PAN) using molten naphthalene as a diluent has been studied. A green complex of palladium with PAN is formed at 90°C. In the range of pH 1.5-7.5, the complex is quantitatively extracted into molten naphthalene. The organic phase is anhydrously dissolved in CHCl3 to be determined spectrophotometrically at 678 nm against the reagent blank. Beer's law is obeyed over the concentration range of 0.5-10 ppm. The molar absorptivity and Sandell's sensitivity are 1.2 x 104 l mol-1 cm-1 and 0.0070 mg cm-2, respectively. The optimum conditions for determination are obtained. The interferences of various ions are observed in detail. The method has been applied to the determination of palladium in synthetic samples.

Original languageEnglish
Pages (from-to)837-842
Number of pages6
JournalTalanta
Volume44
Issue number5
DOIs
Publication statusPublished - May 1997
Externally publishedYes

Fingerprint

Palladium
Molten materials
Liquids
Ions
1-(2-pyridylazo)-2-naphthol
naphthalene

Keywords

  • Molten naphthalene
  • Palladium
  • Spectrophotometric

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

Spectrophotometric determination of palladium after solid-liquid extraction with 1-(2-pyridylazo)-2-naphthol at 90°C. / Gao, Jinzhang; Peng, Bo; Fan, Haiyan; Kang, Jingwan; Wang, Xudong.

In: Talanta, Vol. 44, No. 5, 05.1997, p. 837-842.

Research output: Contribution to journalArticle

Gao, Jinzhang ; Peng, Bo ; Fan, Haiyan ; Kang, Jingwan ; Wang, Xudong. / Spectrophotometric determination of palladium after solid-liquid extraction with 1-(2-pyridylazo)-2-naphthol at 90°C. In: Talanta. 1997 ; Vol. 44, No. 5. pp. 837-842.
@article{da817f9f64c14882813a2d870aa1f0c6,
title = "Spectrophotometric determination of palladium after solid-liquid extraction with 1-(2-pyridylazo)-2-naphthol at 90°C",
abstract = "An effective spectrophotometric determination of palladium with 1-(2-pyridylazo)-2-naphthol (PAN) using molten naphthalene as a diluent has been studied. A green complex of palladium with PAN is formed at 90°C. In the range of pH 1.5-7.5, the complex is quantitatively extracted into molten naphthalene. The organic phase is anhydrously dissolved in CHCl3 to be determined spectrophotometrically at 678 nm against the reagent blank. Beer's law is obeyed over the concentration range of 0.5-10 ppm. The molar absorptivity and Sandell's sensitivity are 1.2 x 104 l mol-1 cm-1 and 0.0070 mg cm-2, respectively. The optimum conditions for determination are obtained. The interferences of various ions are observed in detail. The method has been applied to the determination of palladium in synthetic samples.",
keywords = "Molten naphthalene, Palladium, Spectrophotometric",
author = "Jinzhang Gao and Bo Peng and Haiyan Fan and Jingwan Kang and Xudong Wang",
year = "1997",
month = "5",
doi = "10.1016/S0039-9140(96)02122-4",
language = "English",
volume = "44",
pages = "837--842",
journal = "Talanta",
issn = "0039-9140",
publisher = "Elsevier",
number = "5",

}

TY - JOUR

T1 - Spectrophotometric determination of palladium after solid-liquid extraction with 1-(2-pyridylazo)-2-naphthol at 90°C

AU - Gao, Jinzhang

AU - Peng, Bo

AU - Fan, Haiyan

AU - Kang, Jingwan

AU - Wang, Xudong

PY - 1997/5

Y1 - 1997/5

N2 - An effective spectrophotometric determination of palladium with 1-(2-pyridylazo)-2-naphthol (PAN) using molten naphthalene as a diluent has been studied. A green complex of palladium with PAN is formed at 90°C. In the range of pH 1.5-7.5, the complex is quantitatively extracted into molten naphthalene. The organic phase is anhydrously dissolved in CHCl3 to be determined spectrophotometrically at 678 nm against the reagent blank. Beer's law is obeyed over the concentration range of 0.5-10 ppm. The molar absorptivity and Sandell's sensitivity are 1.2 x 104 l mol-1 cm-1 and 0.0070 mg cm-2, respectively. The optimum conditions for determination are obtained. The interferences of various ions are observed in detail. The method has been applied to the determination of palladium in synthetic samples.

AB - An effective spectrophotometric determination of palladium with 1-(2-pyridylazo)-2-naphthol (PAN) using molten naphthalene as a diluent has been studied. A green complex of palladium with PAN is formed at 90°C. In the range of pH 1.5-7.5, the complex is quantitatively extracted into molten naphthalene. The organic phase is anhydrously dissolved in CHCl3 to be determined spectrophotometrically at 678 nm against the reagent blank. Beer's law is obeyed over the concentration range of 0.5-10 ppm. The molar absorptivity and Sandell's sensitivity are 1.2 x 104 l mol-1 cm-1 and 0.0070 mg cm-2, respectively. The optimum conditions for determination are obtained. The interferences of various ions are observed in detail. The method has been applied to the determination of palladium in synthetic samples.

KW - Molten naphthalene

KW - Palladium

KW - Spectrophotometric

UR - http://www.scopus.com/inward/record.url?scp=0030955488&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030955488&partnerID=8YFLogxK

U2 - 10.1016/S0039-9140(96)02122-4

DO - 10.1016/S0039-9140(96)02122-4

M3 - Article

C2 - 18966809

AN - SCOPUS:0030955488

VL - 44

SP - 837

EP - 842

JO - Talanta

JF - Talanta

SN - 0039-9140

IS - 5

ER -