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ysis and other related methods. To get a copy of this manual, write to. 71/7-7/-. ·. FILTER. CORPORATION ... Write for Bulletin 68. SOLIDSUQUIDSGASES...
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DRY AIR & GASES ACRYLIC COLUMN DRIES AIR TO A DEW POINT OF -100 F AT PRESSURES UP TO 90 psig

2nd

This Plexiglas unit uses indicating DRIERITE as its desiccant to com­ pletely dry air and gases at atmos­ pheric pressure or up to 90 psig. A simple connection by rubber hose from the compressed air line or gas cylinder to the bottom inlet pro­ vides an immediate flow of dry gas. Flow rate may be 200 liters per hour or 0.1 scfm.

PRINTING Bulletin 1032a describing Packard 400 Channel Analyzers, is once again available for distribution. Send for your copy today.

Indicating DRIERITE changes from blue to pink when exhausted. Up­ ward progress of color change pro­ vides a constant visual assurance of active desiccant. Regenerating restores blue color.

S i z e : 2s/," χ 113/β"

Write for Bulletin 68

SOLIDS-LIQUIDS-GASES-SOLIDS-LIQUIDS-GASES-SOLIDS

PACKARD INSTRUMENT COMPANY, INC. BOX 4 2 8 · LA GRANGE. ILLINOIS

1DRIERITE "

W. A. HAMMOND DRIERITE CO.

9ioss3svo-sainoiTscnos-S3SvosQinDnsano® Circle No. 179 on Readers' Service Card

Circle No. 43 on Readers' Service Card

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MONITORING

Worth writing for

PLUS $B45

76 PAGES — FREE OF CHARGE

ULTRAVIOLET ANALYZER Precise, quantitative measurement of absorbance of flow streams such as chromatographic effluents.

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Records true linear absorbance in two switch-selected ranges: 0-0.5 and 0-2.5 absorbance units. Unsurpassed sensitivity and stability; records amino acid concentrations on the order of 1 ug/ml. Unique optical system (patent ap­ plied for) provides unsurpassed accuracy, without changing wavelengths or base line compensation. Can, if desired, automatically actuate a fraction collector to deposit each UV-absorbing fraction in a separate collecting tube.

COMPLETE S E N D FDR LITERATURE

Also used as companion instrument to the exclusive I SCO Density-Gradient Fractionator.

AD M-70, "MicrocherrHcal and Instrumental Analysis" describes techniques for identify­ ing particulate contaminants, using Millipore filters, in optical and electron microscopy, microchemical spot tests, ring oven analysis, infrared and ultra-violet absorption spectros­ copy, flame photometry, radioactivity anal­ ysis and other related methods. To get a copy of this manual, write to

Millipore

Aenia, UNO

Equipped with recorder and event marker. Provision for external recorder.

CORPORATION

115 Ashby Road, Bedford, Mass. Millipore® filters are cellulose plastic porous membranes made in twelve pore-size grades from 8 microns down to 10 millimicrons. In microfiltration or analysis, all matter larger than the filter pore size is screened from fluids and retained on the filter surface. Circle No. 140 on Readers' Service Card

140 A

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ANALYTICAL CHEMISERY

1I5CD

INSTRUMENTATION SPECIALTIES C O . , 5624 Seward, Lincoln 7, Nebri

Circle No. 37 on Readers' Service Card

INC.