Determination of quaternary ammonium salts by ion-pair extraction-titrations with tetrabromophenol-phthalein ethyl ester as indicator

Analytica Chimica Acta ◽

10.1016/0003-2670(77)80049-4 ◽

1977 ◽

Vol 93 ◽

pp. 357-358 ◽

Author(s):

Tadao Sakai ◽

Masahiro Tsubouchi ◽

Motohiro Nakagawa ◽

Masaya Tanaka

Keyword(s):

Ethyl Ester ◽

Quaternary Ammonium ◽

Ion Pair ◽

Quaternary Ammonium Salts ◽

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Determination of extraction constant, true partition coefficient and formation constant of ion-pair complexes of quaternary ammonium salts, tetrabutylammonium bromide and isopropamide iodide.with some organic anions by a solvent extraction technique

International Journal of Pharmaceutics ◽

10.1016/0378-5173(81)90018-1 ◽

1981 ◽

Vol 8 (2) ◽

pp. 143-151 ◽

Author(s):

C.K. Shim ◽

R. Nishigaki ◽

T. Iga ◽

M. Hanano

Keyword(s):

Solvent Extraction ◽

Quaternary Ammonium ◽

Formation Constant ◽

Tetrabutylammonium Bromide ◽

Extraction Constant ◽

Ion Pair ◽

Quaternary Ammonium Salts ◽

Ammonium Salts ◽

Solvent Extraction Technique

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Spectrophotometric determination of trace amounts of quaternary ammonium salts in drugs by ion-pair extraction with bromophenol blue and quinine

The Analyst ◽

10.1039/an9830800608 ◽

1983 ◽

Vol 108 (1286) ◽

pp. 608 ◽

Author(s):

Tadao Sakai

Keyword(s):

Spectrophotometric Determination ◽

Quaternary Ammonium ◽

Ion Pair ◽

Quaternary Ammonium Salts ◽

Ammonium Salts ◽

Bromophenol Blue

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Volumetric Determination of Surfaceactive Quaternary Ammonium Salts using Marme's Reagent.

Chemical and Pharmaceutical Bulletin ◽

10.1248/cpb.9.326 ◽

1961 ◽

Vol 9 (4) ◽

pp. 326-327 ◽

Author(s):

Toyozo Uno ◽

Koichiro Miyajima

Keyword(s):

Quaternary Ammonium ◽

Quaternary Ammonium Salts ◽

Ammonium Salts ◽

Volumetric Determination

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Spectrophotometric determination of trace levels of atmospheric ammonia by conversion into indophenol and extraction with quaternary ammonium salts

Talanta ◽

10.1016/0039-9140(90)80154-8 ◽

1990 ◽

Vol 37 (11) ◽

pp. 1063-1065 ◽

Author(s):

N YAMAMOTO ◽

N KASAHARA ◽

T SHIRAI

Keyword(s):

Spectrophotometric Determination ◽

Quaternary Ammonium ◽

Quaternary Ammonium Salts ◽

Ammonium Salts ◽

Atmospheric Ammonia

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Determination of Quaternary Ammonium Salts by Sodium Tetraphenylborate

YAKUGAKU ZASSHI ◽

10.1248/yakushi1947.80.2_153 ◽

1960 ◽

Vol 80 (2) ◽

pp. 153-155 ◽

Author(s):

Toyozo Uno ◽

Koichiro Miyajima ◽

Hiroaki Tsukatani

Keyword(s):

Quaternary Ammonium ◽

Quaternary Ammonium Salts ◽

Ammonium Salts ◽

Sodium Tetraphenylborate

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Ion-Pair Formation of Quaternary Ammonium Salts in Hydrogen-Bonded Solvents

Zeitschrift für Physikalische Chemie ◽

10.1524/zpch.1972.81.1-4.148 ◽

1972 ◽

Vol 81 (1-4) ◽

pp. 148-157 ◽

Author(s):

F. Accascina ◽

M. Goffredi ◽

R. Triolo

Keyword(s):

Quaternary Ammonium ◽

Ion Pair ◽

Pair Formation ◽

Quaternary Ammonium Salts ◽

Ammonium Salts ◽

Ion Pair Formation ◽

Hydrogen Bonded

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Spectrophotometric determination of uranium with chrome azurol s in the presence of quaternary ammonium salts

Analytica Chimica Acta ◽

10.1016/s0003-2670(01)84671-7 ◽

1976 ◽

Vol 83 ◽

pp. 397-402 ◽

Author(s):

B. Evtimova

Keyword(s):

Spectrophotometric Determination ◽

Quaternary Ammonium ◽

Quaternary Ammonium Salts ◽

Ammonium Salts ◽

Chrome Azurol S

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Direct Titrimetric Determination of Aromatic Quaternary Ammonium Salts and Long Chain Aliphatic Sulfates and Sulfonates

Journal of Pharmaceutical Sciences ◽

10.1002/jps.2600551225 ◽

1966 ◽

Vol 55 (12) ◽

pp. 1446-1447 ◽

Author(s):

Joye A. Billow ◽

H. Weldon Baker

Keyword(s):

Quaternary Ammonium ◽

Quaternary Ammonium Salts ◽

Ammonium Salts ◽

Titrimetric Determination ◽

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Determination of cistrans Isomers in Unsaturated Longehain Aliphatic Quaternary Ammonium Salts by 13CNMR Spectrometry

Journal of Japan Oil Chemists Society ◽

10.5650/jos1956.40.109 ◽

1991 ◽

Vol 40 (2) ◽

pp. 109-113

Author(s):

Yoshihisa ENDO ◽

Keiko ITO ◽

Shigeaki MATSUTANI

Keyword(s):

Quaternary Ammonium ◽

Quaternary Ammonium Salts ◽

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THE PHOTOMETRIC DETERMINATION OF QUATERNARY AMMONIUM SALTS AND OF CERTAIN AMINES BY COMPOUND FORMATION WITH INDICATORS

Journal of Pharmacy and Pharmacology ◽

10.1111/j.2042-7158.1954.tb11032.x ◽

1954 ◽

Vol 6 (1) ◽

pp. 971-985 ◽

Author(s):

C. W. Ballard ◽

J. Isaacs ◽

P. G. W. Scott

Keyword(s):

Quaternary Ammonium ◽

Photometric Determination ◽

Quaternary Ammonium Salts ◽

Ammonium Salts ◽

Compound Formation

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