GREATLY IMPROVED SENSITIVITY NOW IN NMR & EPR - C&EN

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IMPROVEM GREATLY

NOW IN SENSIVITY

NMR& EPR With the new C-1024 Time Averaging Computer accessory for Varian spectrometers, sensitivity is essentially limited only by the time you want to invest. Here's how it works: During the data accumulation period, resonance information is converted into digital counts and stored in the computer's 1024-channel ferrite-core memory. Subsequent scans are then synchronized with the memory address so that signals are added coherently. Noise, however, accumulates randomly, and is averaged by the computer, resulting in an improvement of the signal-to-noise ratio equal to the square root of the number of scans taken. There is no theoretical limit; one extended laboratory experiment actually improved the ratio by 50 times! Varian's C-1024 computer is manufactured according to Varian specifications by the Mnemotron Division of Technical Measurement Corporation.

/ f f l k V A R I A N MP A S S O C I A T E S

ANALYTICAL INSTRUMENT DIVISION 611 HANSEN WAY, PALO ALTO 28, CALIF.

TEO EXAMPLES OF WHAT THE C-1024 CAN DO EPR

APPLICATIONS

FEATURES

• Permits analysis of extremely small samples

• 1024 channels

• Investigates solubility-limited compounds

• Fast response (25/xsec/channel)

• Detects short-lived free radical intermediates

• Storage capacity > 105 counts/channel

• Studies free radical kinetics at room temperature

• Built-in electronic sweep

• Converts spectral information to digital form

• Built-in oscilloscope

• Clarifies complex patterns, aiding spectral interpretation

• Binary or analog output

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PLEASE SEND ME INFORMATION ABOUT:

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N M R Spectrometers with C-1024 Time Averaging Computer E P R Spectrometers with C-1024 Time Averaging Computer The C-1024 as an accessory for my spectrometer

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Send this coupon now for more information to: SPECTROSCOPY PRODUCT GROUP VARIAN ASSOCIATES 611 H A N S E N WAY PALO ALTO 28, CALIFORNIA IN EUROPE: VARIAN A.G., ZUG, SWITZERLAND

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