Chemical Data Systems, Inc. | Analytical Chemistry

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Can Your GC Analyze Solids? It Can With A Pyroprobe®. The Pyroprobe expands the capabilities of your GC, GC/MS or GC/IR by allowing you to analyze most solids including synthetic polymers, geo-polymers and biopolymers. And that's not all. A Series 120 Pyroprobe can perform: • Analytical Pyrolysis • Headspace Analysis o f Volatile Organics • Simulated C o m b u s t i o n Studies • Simulated Thermal Analysis

Pyroprobe®... The Solid Solution

New Products pH Gradient Scanner Model 240 pH scanner automatically scans the pH gradient of an electrofocusing gel in approximately 10 min. The automatic feature eliminates errors that may arise from hand measurement in­ consistencies, electrode drift, or time variations. Tedious slicing and soaking of gel sections before measurement are unnecessary. Bio-Rad 419

Mass-Selective Detector Model 500 Continuously Variable Angle Specular Reflectance Accessory is for use in IR spectroscopy with both dispersive IR and FTIR instruments. It covers a range of angles of incidence from 20° to 89° by a simple rotation of the sample around a transferred focal point. Increased range is achieved by a switch of a sample with one mirror, yielding a range of 1-89°. Barnes Analytical 404

HP 5970A MSD detector, for specific and selective sample-component identi­ fication, interfaces with most capillary GCs. It confirms the presence of an analyte through spectral acquisition when used in qualitative analysis. With the advantage of its selected-ion-monitor­ ing software, it monitors up to six ions with a high degree of specificity. Hew­ lett-Packard 421

Data Acquisition System

Lab Interface

DT4136 Lab-Datax system takes up to 17.8 million analog data points to disk storage at 96 kHz without the loss of a single data point. The system features interface design for high-speed DMA data transfers, software designs for de­ vice handlers, and a Winchester disk drive optimized for throughput. Data Translation 417

Universal Interface is a data acquisition system that can acquire, digitize, and store data from most analytical instru­ ments. It has two analog and eight dig­ ital input channels through which data can be acquired at variable rates, from 100 μ s to 6 s per data point. Data can be displayed on a CRT either in real time or from the interface's 64K memo­ ry. Varex 422

DNA Purifying Column Elutip-d column provides a method of simultaneously purifying and concen­ trating DNA. The column attaches to the end of a syringe, DNA is adsorbed to the matrix in the column, allowing particu­ lates and contaminants to be washed away by a buffer solution, DNA is then eluted with as little as 0.4 ml_ of buffer, with recoveries as high as 95 % . Schleicher & Schuell 420

Channel Analyzer

CDS Chemical Data S y s t e m s , Inc. 7 0 0 0 Limestone Road Oxford, PA 19363 Phone 215-932-3636 Telex 83-5308

1024-Channel Analyzer PHA1 for nu­ clear spectrometry includes preampli­ fier, amplifier, and high-voltage supply for direct connection of a scintillation detector to provide a complete radia­ tion measurement system. Features in­ clude memory group sizes down to 256 channels, count capacity per channel in excess of 16 million, and an HV supply of up to 2500 V. Thorn EMI Technology 423

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CIRCLE 35 ON READER SERVICE CARD

1278 A · ANALYTICAL CHEMISTRY, VOL. 54, NO. 12, OCTOBER 1982

IR/32 FTIR Spectrometer combines a high throughput optics bench with a data system. The instrument measures the mid-IR region from 4800-400 c m - 1 with a resolution of up to 1 c m - 1 and has an f number of 4.2. The operator console contains a processor, key pad, 12-ln. high-resolution CRT display, disk­ ette drive, and a high-resolution, multicolor printer/plotter. IBM 403