COLEMAN INSTRUMENTS
1
New...Faraday Magnetic Susceptibility System for Under $3000. Teaching... Quality Control... Basic and Applied Re- search • Detects Susceptibility to 0.5 χ 10-6 C gs units Applications include..." Teaching Fundamentals of Mag- netochemistry; e.g., Comparing Properties of Dia-, Para-, Ferro- and Antiferromagnetic Materials. • Oxidation States of Transition Metals in Coordination Complexes. • Stereo- chemical Studies of Ionic and Covalent Structures. • Para- magnetic Susceptibility Changes with Temperature; Curie and Curie-Weiss Laws. Determination of Concentration in Solutions. • Thermomagnetic Studies of Oxidations and Reductions. • Solid State and Materials Research Studies. • Quality control —Determination of Ferromagnetic Impurities. Milligram samples can be studied over a temperature range of 130°C below ambient to at least 300° above. The sys- tem's permanent magnet has a flux density of approxi- mately 5700 gauss. • Standard readout is a visual digital display: recorder output is also provided. • Use the post card for more information. Cahn Division/Ventron Instruments Corporation 7500 Jefferson St., Paramount, California 90723 · (213) 634-7840 Circle No. 33 on Readers' Service Card here is the first complete, self-contained Mercury Analyzer System. Coleman Model MAS-50/$875. ο Π ο D < D FIRST CLASS Permit No. 25682 Philadelphia, Pa. 19101 BUSINESS REPLY CARD NO POSTAGE STAMP NECESSARY IF MAILED IN THE UNITED STATES POSTAGE WILL BE PAID BY ANALYTICAL CHEMISTRY P. O. Box #8660 Philadelphia, Pennsylvania 19101 f§ £ S3 •° I "5 Ο > ce «Si S"Ë a « ce <o ι- Ν τ - f - Ν ·• m LU — 430 in in in èô S 5 429 In <ô LITER 412 413 428 CO PO m CD LITER 412 413 427 CM CM in CD CALS, MFG 409 410 411 426 m CD CALS, MFG 409 410 411 425 ο ο ΙΟ CD CALS, MFG 409 410 411 424 en σ> 88 ^ 00 i ο UJ ·» 423 ΟΟ CO ο ο ΙΛ CD 422 88 UCTS, NEW 404 405 406 421 CD CD 33 UCTS, NEW 404 405 406 420 ur> in UCTS, NEW 404 405 406 419 §1 rx :» 418 CO CÏ 3 3 £§ 417 CM CM 3 3 ëi 416 33 D SS —I 5 S <D y— <Ω S »—CMfO^incoi^oocTiO*—^POTrincor^cooeo»— ΕΝΙΜΤΤΙΛ OOOOOOOOOi-T-*— *- ι—»-τ— Ψ- i— »- CM CM CM CM CM CM (ONcoa)Or-tNro3in<pNooo>Or- Mco^mtoNOoanQ ^i^h~t^ooQ3c<>oooococoooQOcoçncncF>cncnçncncnc/}0)o CNiCMCMCMCMCMCMCMCMCSICMCsICMCMCMCMCMCMCMCMCMCNiCMCMCO ^«NM^iO(ONOOCBQ^NCO^iO<DNOOO>OF-NfO*in CMCMCMC^CMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCM CÛKOOÇftOi-iNM'TUÎCDSOOCflOt-WCXtineOS.OOC'iO CSICMCVJCMCMCMCMCMCMCNiCNICMCMCMCMCMCMCMCMCMCMCMCMCMCM ©OOOOOOOO.-*— »— r-t—T--— <— ^ «— CM CM CM CM CM CM CMe^CMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCM r*- r«» r»» r*- co oo oo oo oo oo oo co oo oo en en en en o» en en en en en ο »—*-.-»—.— ,-,-•— τ-r-T-r-i— τ-τ-»— y— i- i- i— »— f- *~ r- CM »— cNm«in(0Ncoc»Of-tMtO9in(DNCQcoO'- CM co *r m tnininiAiAininintncococococococDtoto0KKNNNK co "~ "~ *~ "~ *"" "~ *" *"" ""* """ *~ *~ *~ "~ "~ *~ "~ """ """ "~ """ """ *" *"" "~ l·- cfiNcooio^cNnTfirtcciNCOOio^csimvtnfONtocRO Ο NNtNNmM(*)MMMrt«M(*ï^w<t<fVV*T^*in 3 '-·-'-'-'-'- — '-·-'-·-•-"-'-'-'-'-'-'-'-'-'- — ·-'- S »-CM co 3 m cor~ coen ο •-CM co TJ-m cor~ coenor-CM co^ m Ο Ο Ο Ο Ο CD Ο Ο Ο Ο •— •— »— » — » - ι — ι — t — » — * - CM CM CM CM CM CM ce — · - · - — .-.-Y-.- —»-.->- — . - — »-«-*-.-.-.-.-.-.-.- a. cor>ncnof-Nmvtn<DKÇQçno^c>iÎO«in(ONcoo}Q Q ι-» h- r~ r>» co oo oo oo oo oo oo oo co oo en on en en en en en en en en ο UJ *~ S2 T-ïMfçnioioseooïQ^NMviocoKcomoT-Mmflin μ_ inininininininifliotpioiotdtDcoiocccDicNNSSNN CC υ coNaocnQ^N<*)#incosoocnor-Nm«in(uh.cO(7)Q ir CM CM CM CM co co co co co co co co co co ^ ^ ^ «· •»} ft ^ «• ·*τ •«• in Q ,-ÎNC)iilOÎONCOO>0»-eNCO^incDNCOOiO*-ÇNfO«lO ^ »— τ- ι— ψ- r- ι— ψ- t— r~ r~ CM CM CM CM CM CM It can be used in many scien- tific fields. Pollution: Air, water, food, soil, tissue. Clinical: Urine, blood, tissue. Industrial Control: Food, metal, soil, fertilizer. • Sensitivity .01 μg of mercury, equal to or better than A.A. • Direct reading in <xg of mer- cury · Hatch and Ott procedure This compact, self-contained, low-cost system makes deter- mination of mercury in solids and solutions, organic or in- organic, or in air an inexpen- sive routine procedure. Coleman MAS-50 is so easy to operate, no special training is required. Call or write today for free bulletin A-350. COLEMAN INSTRUMENTS 42 MADISON STREET MAYWOOD, ILLINOIS 60153 (312 345-7500) A DIVISION OF THE PERKIN-ELMER CORPORATION Circle No. 36 on Readers' Service Card 84 A . ANALYTICAL CHEMISTRY,
Transcript of COLEMAN INSTRUMENTS
New...Faraday Magnetic Susceptibility System for Under $3000. Teaching... Quality Control.. . Basic and Applied Research • Detects Susceptibility to 0.5 χ 10-6 Cgs units Applications inc lude. . . " Teaching Fundamentals of Mag-netochemistry; e.g., Comparing Properties of Dia-, Para-, Ferro- and Antiferromagnetic Materials. • Oxidation States of Transition Metals in Coordination Complexes. • Stereochemical Studies of Ionic and Covalent Structures. • Paramagnetic Susceptibility Changes with Temperature; Curie and Curie-Weiss Laws. Determination of Concentration in Solutions. • Thermomagnetic Studies of Oxidations and Reductions. • Solid State and Materials Research Studies. • Quality control —Determination of Ferromagnetic Impurities. Milligram samples can be studied over a temperature range of 130°C below ambient to at least 300° above. The system's permanent magnet has a flux density of approximately 5700 gauss. • Standard readout is a visual digital display: recorder output is also provided. • Use the post card for more information.
Cahn Division/Ventron Instruments Corporation 7500 Jefferson St., Paramount, California 90723 · (213) 634-7840
Circle No. 33 on Readers' Service Card
here is the
first complete, self-contained
Mercury Analyzer System.
Coleman Model MAS-50/$875.
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ANALYTICAL CHEMISTRY
P. O. Box #8660
Philadelphia, Pennsylvania 19101
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It can be used in many scientific fields. Pollution: Air, water, food, soil, tissue. Clinical: Urine, blood, tissue. Industrial Control: Food, metal, soil, fertilizer.
• Sensitivity .01 μg of mercury, equal to or better than A.A. • Direct reading in <xg of mercury · Hatch and Ott procedure
This compact, self-contained, low-cost system makes determination of mercury in solids and solutions, organic or inorganic, or in air an inexpensive routine procedure. Coleman MAS-50 is so easy to operate, no special training is required. Call or wr i te today for free
bulletin A - 3 5 0 .
C O L E M A N I N S T R U M E N T S
4 2 M A D I S O N S T R E E T
M A Y W O O D , ILL INOIS 6 0 1 5 3
(312 345-7500) A DIVISION OF THE PERKIN-ELMER CORPORATION
Circle No. 36 on Readers' Service Card
84 A . ANALYTICAL CHEMISTRY,
