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The effect of bis(N,N-diethylaminoethyl) disulfide in the determination of ME is eliminated by changing the order of elution from a Chromatographic column.
      
The behavior of a kinetically inert form of ruthenium(IV), the μ-oxo-bis-[pentachlororuthenate(IV)] ion [Ru2OCl10]4-, was studied in aqueous alcohol solutions of hydrochloric acid under microwave radiation and upon the heating of the solutions.
      
Arsenazo III 2,7-bis[(2-arsonophenyl)azo]-1,8-dihydroxy-3,6-naphthalenedisulfonic acid was synthesized by S.B.
      
Determination of bis(2-ethylhexyl) phthalate in water by high-performance liquid chromatography with direct on-column preconcent
      
A technique for the direct preconcentration of bis(2-ethylhexyl) phthalate (DEHP) on a reversedphase analytical column was proposed for the analysis of water samples by high-performance liquid chromatography (HPLC).
      
Spectrophotometric Determination of Carbon Disulfide Using Bis(4-(4'-Nitrophenyl)azo-2-Nitrophenyl) Disulfide
      
Bis(4-(4'-nitrophenyl)azo-2-nitrophenyl) disulfide (NADS) has been synthesized for the first time and proposed for the indirect photometric determination of carbon disulfide by dithiocarbamic acid.
      
The intense sensitization of terbium luminescence with copper(II) ions was observed in the Tb-Cu mixed-metal complex of 1.5-bis(2-hydrazinocarbophenoxy)-3-oxapentane (HCPhO) with the ratio Tb : Cu : HCPhO = 1 : 1 : 1.
      
Determination of trace europium(III) based on a new fluorescence enhancement system of europium(III) with N,N'-bis-(4-N-aminothi
      
A new bis-Schiff base ligand, N,N'-bis-(4-N-aminothiourea-2-amylidene)-4,4'-diaminodiphenyl sulfone (ARADS), was synthesized.
      
The method is based on the diazotization of 4,4-methylene-bis-m-nitroaniline followed by a coupling reaction with either INH or RTH in hydrochloric acid medium.
      
The silver cation reacts with bis(2-mercaptoanil) acetylacetone (BMAA) at pH 6.
      
Bis-(2,3,4-trihydroxyphenylazo)benzidine as a reagent for the photometric determination of aluminum
      
The complexation of aluminum(III) with bis-(2,3,4-trihydroxyphenylazo)benzidine is studied in the presence of urotropine, phenanthroline, 2,2'-dipyridyl, and papaverine.
      
The resultant aldehyde group was condensed with 4-aminoantipyrine in the basic medium to form a red product having λmax at 489 nm or condensed with4,4'-methylene-bis-m-nitroaniline to form a plae red product with an absorption maximum of 513 nm.
      
Beer's law was obeyed over the range 0.6-10 μg/mL (molar absorptivity 2.184 × 104 L/mol cm) for 4-aminoantityrine and over the range of 1-12 μg/mL (molar absorptivity 4.162 × 104 L/mol cm) for 4,4'-methylene-bis-m-nitroaniline.
      
Reagents based on bis-(2,3,4-trihydroxyphenylazo)benzidine and 2,2',3,4-tetrahydroxy-3'-sulfo-5'-nitroazobenzene were used for the spectrophotometric determination of nickel.
      
Polyethylene glycol esters (succinate, sebacate, and adipate), polystyrene, β-alanine, Triton X-100, Apiezon L, bis-(2-cyanoethyl) ether, and dicyclohexano-18-crown-6 are studied as modifiers of electrodes of mass-metric piezoelectric resonators.
      
A novel macroporous chelating resin was prepared from epoxy resin (Bis-phenol diglycidil ether, DEGEBA) and triethylenetetramine using polymerization with polyethylene glycol as the pore-forming agent.
      
Main stages of unusual allyl coupling involving nickel bis-η3-allyl complexes in the presence of dichlorobutenes
      
 

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