Some of the reasons why J.T. Baker is not #2 in laboratory chemicals. BIOCHEMICAL REAGENTS
'BAKER INSTRA-ANALYZED' SOLVENTS
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SPECIAL PRODUCTS FOR ANALYSIS
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J.T. Baker is #1 for many reasons...one is we've introduced more new products in the past five years than all our major competitors combined. For example...
REAGENTS FOR TRACE METALS
THIN-LAYER C H R O M A T O G R A P H Y The new BAKER-FLEX™ flexible TLC sheets combine some of the best features of a glass plate with the many advantages of a flexible sheet. All BAKER-FLEX sheets utilize common visualization techniques—the silica gel and aluminum oxide sheets permit sulfuric acid.charring. You get increased resolution and better, definition on BAKER-FLEX because its thicker adsorbent layer permits loading 2 to 8 times more sample. They are available with 18 different adsorbents including fluorescents, have a solvent-resistant substrate, are abrasion-resistant, can be written on and cut to size. To select the proper adsorbent type for new or existing thin-layer chromatographic separations use the unique BAKER-FLEX Selector Kit # 1 . The kit contains a selection of four adsorbent types and a handy guide to solving your separation problems. TLC Visualization Reagents. Over 50 'Baker Analyzed' Reagents are used as universal and selective spray détectants. Their composition and use for visualizing specific classes of compounds are offered in the free "Guide to Visualization Reagents". ..write for o n e . Other TLC products include a full line of adsorbents, calcium sulfate, fluoresc e n t i n d i c a t o r d é t e c t a n t s in aerosol spray form, and other specialty products.
THIN-LAYER CHROMATOGRAPHY
ULTRA H I G H P U R I T Y MATERIALS A l m o s t o n e h u n d r e d ULTREX products have been developed to date as part of a continuing major research program to meet your needs for carefully defined ultra high purity products. Several already have been used at the National Bureau of Standards as primary standards. ULTREX™ products include: Inorganic Salts, such as, sodium chloride (99.98%) for use as a sodium standard; Hydrocarbons, such as benzene (99.99%) used as a standard in gas chromatography; and Acids, such as hydrochloric acid (with 5 ppb lead) for trace lead analysis. For ULTREX information, write to J. T. Baker. S P E C I A L P R O D U C T S FOR A N A L Y S I S Unique solutions to your analytical problems: DILUT-IT™ Analytical Concentrates. For easy preparation of high accuracy standard solutions there are 46 high purity concentrates including acids, gases, and ionic standards. ION Test Papers. Allow fast and rapid de-
tection of over 30 common ions. Sold in individual packs each containing 60 test strips. DUAL-TINT™ pH Test Papers ("your pocket pH meter") are accurate to 0.3 pH units. They give quick, accurate, economical pH readings. Available in one wide and three narrow pH ranges in handy pocket size dispensers. 'BAKER I N S T R A - A N A L Y Z E D ' SOLVENTS A full line of precisely defined solvents with purity level 9 9 + % by GC for chromatographic, spectrophotometric and research uses. SPECIALTY G A S E S Count on Baker for continuing innovations in a line of more than 3,000 specialty gas products. Recent introductions are oxygen-free inert gases. Among the benefits—elimination, in dry box applications, of decomposition by oxygen and moisture-sensitive materials. Baker has the complete line of specialty gases for use in laboratory and selected process applications, including more than 100 different gases (some never offered before), in all the popular grades and cylinder sizes. Also the regulators, flow meters, and fittings needed for gas handling systems. An infinite variety of custom mixtures is available in the highest accuracy possible. Baker introduced the no-deposit, computerized monthly rental system, which almost eliminates cylinder record keeping. For all the benefits these 3,000 specialty gas products can bring you, write for our free new catalog. BIOCHEMICAL REAGENTS J. T. Baker offers a line of key biochemical reagents such as anthrone and orcinoi, and trifluoroacetic acid for amino acid and peptide studies. TRACE METAL REAGENTS An extensive line of these organic reagents is available; for example—3,3' diaminobenzidene hydrochloride for selenium; specially purified and controlled brilliant green for photometric determination of antimony, and now for exacting collection or extraction 8-quinolinol, ULTREX for trace analysis, highly characterized by spectrograph^* lot values and other tests. All of these new products, plus the more than 5,000 laboratory chemicals you need and use most often, are readily available from your nearby J. T. Baker distributor. And they'll all be in the new J . T. Baker Catalog 700, to be.distributed in a few months. . . Reserve your copy now. / / ~ \ \
J.T.Baker J . T . B A K E R C H E M I C A L C O M P A N Y , P H I L L I P S B U R G , N E W J E R S E Y 08865
