Sample preparation for XRF-AA-ICP-CHEM.
PEAK
S u l f u r d e t e c t i o n . Model 880-A measures sulfur by incineration in the unit's internal combustion tube. Sulfur concentration is determined from IR absorption of the combustion gas using a nondispersive detector and a n a r r o w - b a n d optical filter. Houston Atlas 416
QUALITY with
B r i n e s e n s o r . Brine Sensor provides pH measurements in caustic brine solutions. The electrode lasts 20 times longer t h a n standard pH electrodes. Innovative Sensors 417 Water p u r i f i c a t i o n . VUV Series UV lamps may be used singly or in combination in any size water t a n k to destroy bacteria and t h e i r byproducts. Because the lamps are encased in quartz immersion sleeves, replacement can be accomplished without disturbing the t a n k seal. Vaponics 418
Software
Claisse Fluxes (Borates and Phosphates) Model 701 Metrohm Karl Fischer titrator, equipped for two-way communication, automatically determines the titer, blank, drift, or water concentration in 30 s before aspirating the titered sample. Brinkmann Instruments 423
DNA. Molmatch is a software package and digitizing tablet that allows the user to size, store, and manipulate DNA or protein data from electrophoresis gels. Designed for IBM and compatible PCs, the software features pattern matching used in conjunction with user-created "fingerprint" libraries. UVP 419
Corrosion analysis. FieldCorr portable corrosion analyzer technical brochure describes the instrument's capabilities, packaging features, software, and specifications. Applications in chemical plants and oil fields are also described. EG&G Princeton Applied Research Corp. 424
NMR. CSEARCH software, designed for VAX computers, automates routine interpretation of 13 C NMR spectroscopic data and forms the basis of a spectroscopic d a t a m a n a g e m e n t system for archiving and retrieving proprietary 13 C NMR spectra. BioRad 420
Oil a n a l y s i s . TPH and TPH Plus, designed for the measurement of oil in soil and water, are based on EPA methods 418.1 and 413.2. Features t h a t make these instruments suitable for field analyses and disposable field s a m p l i n g k i t s a r e also described. GAC 425
Molecular m o d e l i n g . Python, an integrated quantitative s t r u c t u r e activity relationship method of molecular modeling, combines computat i o n a l tools (such as s t a t i s t i c a l analysis, compound tracking, and molecular graphics) that are necessary for the development of drugs. The software is available on HP 700 series and Silicon Graphics platforms. Oxford Molecular 421
Manufacturers' Literature pH. "pH: Theory and Practice" details the definition and importance of pH and practical aspects of pH measurements. An appendix includes pH values of 13 common buffers at 31 different temperatures. 40 pp. Radiometer Analytical 422
V J e t a new perspective on analysis and better results. The CLAISSE FLUXES have exceptional qualities due to their PURITY and COARSE texture. Claisse Fluxes are Tip-Top. FEATURES • free-flowing crystals • low surface area • high density • fused, not mixed • popular and special compositions CONSEQUENT ADVANTAGES • no loss from static electricity • no loss by splattering or foaming on heating • very low water absorption • no uncertainty on quantity weighed • no segregation in containers • FREE SAMPLE upon request
Catalogs Technical training. Technical Training Materials covers topics such as c h e m i s t r y , QC, safety, s t a t i s t i c s , computers, engineering, mathematics, a n d software. An audiovisual training section and an index are included. More than 36 publishers are represented. 60 pp. Cole-Parmer 426 PCs. More than 400 IBM PC-related products are listed in the 1992 PC Compatible Source-Book, designed for scientists and engineers in industrial and educational laboratories as well as in the telecommunications, factory automation, and process m e a s u r e ment and control industries. 24 pp. Industrial Computer Source 427
For world-wide sales, address of local agents and service information please call or write to:
corporation scientifique claisse inc.
2522, chemin Sainte-Foy Sainte-Foy (Québec) Canada G1V 1T5 Tel: (418) 656-6453 Fax: (418) 656-1169 Telex: 051-31731
The First and Finest in Fusion. CIRCLE 22 ON READER SERVICE CARD
ANALYTICAL CHEMISTRY, VOL. 64, NO. 9, MAY 1, 1992 · 547 A
