PICKERING LABORATORIES

SGE Flexible Vitreous Silica Capillary Columns More Performance, in Less Time, for Fewer Dollars 25QC/CW20M Alkylbenzene Mix I X 03 TO Q. zene Styrene ene ene -ben •— >, X >N TO IF TO ; ο CO : Ο ε : Ο | 0 Our column's performance speaks for itself. Other silica columns promise performance...our columns deliver. And speaking of delivery, you'll be im- pressed by our response to your needs. In most cases, our vitreous silica columns will be on the way in less than 24 hours after your order is received. And when you order, subtract the price of our columns from the competition's and put the difference in the bank. SGE FLEXIBLE VITREOUS SILICA CAPILLARY COLUMNS give you more performance in less time for fewer dollars. To order FLEXIBLE VITREOUS CAPILLARY COLUMNS consult your SGE CHROMATOGRAPHY AND MASS SPECTROMETRY CATALOG or contact your SGE Distributor. ο ι 10 π 12 Minutes Head Office: Scientific Glass Engineering Pty. Ltd. 7 Argent Place Ringwood, Victoria 3134 Australia Tel: (03) 874-6333 U.S.A. Sales Office: Scientific Glass Engineering, Inc. 2007 Kramer Lane, Suite 100 Austin, Texas 78758 U.S.A. Tel: (512) 837-7190 U.K. Sales Office: Scientific Glass Engineering (UK) Ltd. 657 North Circular Road London, NW27AY Great Britain Tel: (01) 452-6244 German (BRD) Sales Office: Scientific Glass Engineering Gmbh. Fichtenweg 15 D-6108 Weiterstadt 1. Tel: (06150)40662 CIRCLE 198 ON READER SERVICE CARD Realize the full potential of your amino acid analyzer with • Pickering reagents. Now you can get a complete family of reagents for amino acid analysis (protein hydrolysates) from Pickering Laboratories— the same company that brought you Trione™ the ready-to-use nin- hydrin reagent recommended by amino-acid analyzer manufacturers. Our reagents include sodium eluents (pH 3.28,4.25, and 7.40), régénérant, diluent, chromatographic grade o-Phthalalde- hyde (ΟΡΑ), and ΟΡΑ diluent. All Pickering eluents offer you superior pH stability (±0.01), controlled normality, and the lowest amine contamination on the market. Our ΟΡΑ and Trione post-column reagents let you detect concentrations of 100 picomoles or less. These reagents are available now, and will be shipped the same day we receive your order. Call or write us today. A baseline you can build on. 1951 Colony Street, Suite S Mountain View, CA 94043 Telephone (415) 968-9502 PICKERING LABORATORIES CIRCLE 176 ON READER SERVICE CARD 940 A • ANALYTICAL CHEMISTRY, VOL. 53, NO. 8, JULY 1981

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Transcript of PICKERING LABORATORIES

SGE Flexible Vitreous Silica Capillary Columns

More Performance, in Less Time, for Fewer Dollars

25QC/CW20M Alkylbenzene Mix

X 03

TO Q .

zene

Styr

ene

-ben

• —

>, X > N TO

IF TO ; ο CO : Ο

ε : Ο | 0

Our column's performance speaks for itself. Other silica columns promise performance...our columns deliver. And speaking of delivery, you'll be im

pressed by our response to your needs. In most cases, our vitreous silica columns will be on the way in less than 24 hours after your order is received.

And when you order, subtract the price of our columns from the competition's and put the difference in the bank.

SGE FLEXIBLE VITREOUS SILICA CAPILLARY COLUMNS give you more performance in less time for fewer dollars.

To order FLEXIBLE VITREOUS CAPILLARY COLUMNS consult your SGE CHROMATOGRAPHY AND MASS SPECTROMETRY CATALOG or contact your SGE Distributor.

ο ι 10 π 12 Minutes Head Office: Scientific Glass Engineering Pty. Ltd. 7 Argent Place Ringwood, Victoria 3134 Australia Tel: (03) 874-6333

U.S.A. Sales Office: Scientific Glass Engineering, Inc. 2007 Kramer Lane, Suite 100 Austin, Texas 78758 U.S.A. Tel: (512) 837-7190

U.K. Sales Office: Scientific Glass Engineering (UK) Ltd. 657 North Circular Road London, NW27AY Great Britain Tel: (01) 452-6244

German (BRD) Sales Office: Scientific Glass Engineering Gmbh. Fichtenweg 15 D-6108 Weiterstadt 1. Tel: (06150)40662

CIRCLE 198 ON READER SERVICE CARD

Realize the full potential of your amino acid analyzer with

• Pickering reagents. Now you can get a complete family of reagents for amino acid analysis (protein hydrolysates) from Pickering Laboratories— the same company that brought you Trione™ the ready-to-use nin-hydrin reagent recommended by amino-acid analyzer manufacturers.

Our reagents include sodium eluents (pH 3.28,4.25, and 7.40),

régénérant, diluent, chromatographic grade o-Phthalalde-

hyde (ΟΡΑ), and ΟΡΑ diluent. All Pickering eluents offer you

superior pH stability (±0.01), controlled normality, and the lowest amine contamination on the market. Our ΟΡΑ and Trione post-column reagents let you detect concentrations of 100 picomoles or less.

These reagents are available now, and will be shipped the same day we receive your order. Call or write us today.

A baseline you can build on.

1951 Colony Street, Suite S Mountain View, CA 94043 Telephone (415) 968-9502

PICKERING LABORATORIES

CIRCLE 176 ON READER SERVICE CARD

940 A • ANALYTICAL CHEMISTRY, VOL. 53, NO. 8, JULY 1981