Gilford Instrument Laboratories Inc - Analytical Chemistry (ACS

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With all the spectrophotometers on the market, how do you choose your next o n e ? Ask yourself questions like these and draw your own conclusions. If you want to c h a n g e from enzyme kinetics to thermal melts, from scanning wavelength to scanning gels, from sucrose gradient studies to column chromatography, etc, do you have to c h a n g e spectrophotometers too? Maybe use your neighbor's instrument and ( e s p e c i a l l y if it's a G i l f o r d ) s t a n d i n l i n e ? Our Model 250 accommodates a variety of sample handling systems, and its unrestricted sample space even lets you design your own special-purpose devices. That tells you something about versatility.

How important a r e the critical areas of measurement? The low UV, the dense sample, operation with flow-through or microcuvettes? Model 250's throughput is exceptional; the proof lies in an absorbance range 50% greater than most (3/4 instead of 2A) and in sensitivity to 0.0001A That also tells you something about routine performance.

Which spectrophotometer is used to check guestionable results from o t h e r i n s t r u m e n t s ? With Model 250's wavelength and absorbance standards directly traceable to NBS, verification of results is easy. That tells you something about accuracy.

What's the oldest UV-VIS spectrophotometer still in use in your b u i l d i n g ? There's every chance that it's a Gilford; and if so, there's also a good chance that it's using an accessory or two not listed on the original order. That tells you something about durability.

Versatility, performance, accuracy, and durability: that tells you something about Gilford. As we see it, you have but two choices when it comes time to select your spectrophotometer:

you can shop for price or you can shop for value.

The Gilford Model 250: All the spectrophotometer you will ever need. For information call or write Gilford Instrument Laboratories Inc, Dept.7-9-16 Oberlin OH 44074 (216) 774-1041. CIRCLE 84 ON READER SERVICE CARD

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Oberlin, Ohio 44074 Paris (Malakoff), France Dusseldorf, W. Germany Teddington, Middx., England (216) 774-1041 Telex: 98-0456