electrophoresis

Paper electrophoresis takes 2 important steps Spinco announces developments which make the Model R Paper Electrophoresis

System more useful than ever for

analyses as serum proteins, acids, carbohydrates,

lipoproteins,

hemoglobins, proteins in spinal

tears, and in other body fluids, enzymes, and a number of other inorganic

such

glycoproteins,

amino fluid,

extracts,

and organic

mixtures.

1 NEW

PROCEDURE

Improved low-noise paper plus several changes in recommended procedure increase accuracy and re­ producibility. Subtler changes in the distribution of electrophoretic components can now be recognized •with certainty. In addition, for serum proteins, analysis time has been reduced by over five hours through a new dyeing technique.

puni,. I.I.U.i,.i J

2 NEW

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ANALYTROL

The Spinco Analytrol recording scanner and inte­ grator, which quantitates t h e paper strips, now uses narrow bandpass filters and a high-sensitivity servo amplifier. This substantially improves reproducibility and makes t h e Analytrol a general-purpose paper scanner, recording colori­ meter and recording densitometer.

PRESENT USERS can bring existing Model R Systems up-to-date b y converting earlier-model Analytrols and taking advan­ t a g e of t h e new procedure.

FOR A n e w CHART of t h e new serum protein method and for more informa­ tion on t h e new Spinco Model R Paper Electrophoresis System write to Spinco Division, Beckman Instruments, I n c . , Stanford Industrial Park, Palo Alto, California, Ask for Data File R7.

Beckman® For further information, circle number 46 A on Readers' Service Card, page 77 A 46 A

·

ANALYTICAL CHEMISTRY

Spinco

Division