21 AS-E
LABORATORY GAS CHROMATOGRAPHS
FUTURE ARTICLES Listed below are papers to appear in forthcoming Chemistry.
FRACTOVAP L1NEA C « Single Column »
On-Column Derivatives
Formation
a n d Analysis
issues of
of
Analytical
Trimethylsilyl
George G. Esposifo
Basic Unit mod. ATC/t with thermistor detector Basic Unit mod. ATC/f with 4-hot wire detector For more details ask for ST 50/3c Ε
Analytic Unit mod. ATC
Anion Exchange in Dimethyl Sulfoxide Alan M. Phipps Determination of Molecular W e i g h t from the Interference Pattern o f Sedimentation Equilibrium in the Ultracentrifuge G. M. Nazarian
FRACTOVAP MOD. GI SERIES 450 • • • • •
Analytic Unit mod GI
• •
Direct top column injection All column from injector to detector Packed or capillary, glass or metal columns Multi-column operation Interchangeable ionisation detectors (FID-ECD-MCSSTD) Two detectors in parallel Automatic solid injector
Microdetermination of Mercury b y t h e O x y g e n Combustion M e t h o d
Bomb
Masachiko Fujita, Yasushi Talceda, Tada Terao, Otomatsu Hoshino, and Tyunosin Ultita D e t e r m i n a t i o n o f T r a c e Elements i n O r g a n i c M a t e r i a l b y t h e O x y g e n Bomb M e t h o d Shizuo Fujiwara and Hisatake Narasaki Titration of Some M e t a l Iodine in Chloroform
Diethyldithiocarbamates
by
Arthur F. Grand and Milton Tamres
For more details ask for DT Fv GI
Gas C h r o m a t o g r a p h y O-Methylation
FRACTOVAP LINEA G MOD. GV AND MOD. GT « Dual column »
A. C. Bhattaeharyya, Asit Bhattacharjee, O . K. Guha, and A . N. Basu
of
Monohydric
Phenols
Via
Potentiometric a n d Spectrophotometric Methods f o r t h e D e t e r m i n a t i o n o f Tungsten a n d V a n a d i u m i n H e t e r o p o l y Compounds Dorothy P. Smith and Michael T. Pope
Basic Unit mod. GT
• • • • • • • Basic Unit mod, GV
Packed or capillary, glass or metal columns All column from injector to detector Direct top column injection Multi-column operation Multi-detector operation Automatic solid injector True Analytical and true preparative gas chromatographs
For more details ask for DT 50/10 Ε and DT10/8E. LIQUID-LIQUID CHROMATOGRAPHY MONITOR Direct « in flame » detection for high sensitivity. Continuos, variable speed, micro chain Uniblockwith electrometer am plifier and. Gas controls. LLC Monitor For more details ask for DT 50/9 - Ε
D e t e r m i n a t i o n o f D o u b l e Bond Positions i n P o l y u n s a t u r a t e d F a t t y Acids Using C o m b i n a t i o n G a s C h r o m a t o g raphy—Mass Spectrometry Walter G . Niehaus, Jr., and Ragnar Ryhage A Portable Atomic Absorption Photometer f o r D e t e r m i n i n g N a n o g r a m Q u a n t i t i e s o f M e r c u r y i n t h e Presence o f I n t e r f e r i n g Substances Clement Ling C h e m i c a l S e p a r a t i o n s Using a - H y d r o x y i s o b u t y r i c A c i d Solutions a n d Both C a t i o n a n d A n i o n E x c h a n g e Resin Hazel D. Perdue, Alice Conover, Nancy Sawley, and Ruth Anderson A n a l y s i s o f D i g i t a l D a t a f r o m a M u l t i - C h a n n e l Pulse Height Analyser on G a m m a Ray Total Absorption Peaks in A c t i v a t i o n A n a l y s i s Slawomir Sterlinski A R a p i d Economical M e t h o d o f P a r t i c l e - S i z i n g M a t e r i a l s Used i n C h r o m a t o g r a p h y J. B. Wilkie S p e c t r o p h o t o m e t r i c D e t e r m i n a t i o n o f S o m e O r g a n i c Acids w i t h Ferric 5 - N i t r o s a l i c y l a t e C o m p l e x K. S. Lee, D. W . Lee, and J. Y. Hwang Q u a n t i t a t i v e I n t e r p r e t a t i o n o f G a m m a - R a y Spectra
CARLO E R B A
SCIENTIFIC
INSTRUMENTS
DIVISION
VIA CARLO IMBONATI, 2 4 I 2 0 1 5 9 · MILANO
Circle No. 51 on Readers' Service Card
168 A
·
ANALYTICAL CHEMISTRY
Kurt Liebscher and Hamilton Smith
