NEW PRODUCTS
LEASE ALL TYPES OF
Laboratory Equipment Expand, modernize this timely, easy way — without large expenditures, down payments or debt restrictions. Why wait until funds or fi nancing permit the purchase of the equipment you need right now. You can acquire the new est and finest laboratory equipment immedi ately at modest cost — under the Trinock Plan of Leasing.
Count Rate M e t e r
COLEMAN
Model C R M - 5 9 3 transistorized i n s t r u m e n t can b e operated with any detector, and i t gives both audible and visual signals. I t provides a supply of 3000 volts with what is said t o be b e t t e r t h a n 1-mv. i n p u t sensitivity. There are five ranges to 100,000 counts per minute and four probable error settings: two, five, 10, and 1 5 % for each range. T h e company says t h a t the unit can drive b o t h 0 to 1 ma. and 0 to 100 mv. recorders. Nuclear Corp. of America. P-24
HERE ARE THE SIMPLE FACTS OF A TRINOCK LEASE 1 . The leasing charge is nominal. 2 . The lease may be for a term of 1 to 5 years.
Nephelos system measures liquid clarity far beyond visible limits
3 . No down payments or deposits needed. * r . The lease may include an option to purchase the equipment at expiration of lease. 5 . The lease may be re newed at expiration with a reduced rental to reflect de preciated value.
Leasing under the Trinock Plan frees your capital for other productive purposes . . . saves you the time and expense of arranging financ ing . . . improves your bank and credit position. Keep up with and ahead of competition this timely, easy way. Leasing is fast, simple! Take the first step now! Mail this coupon today — or wire, telephone your inquiry right now!
THE TRINOCK PLAN TRINOCK, INC. 20-26 N. Moore St., Dept. 421, New York City 13, Ν. Υ. WHY W A I T . . .WHEN IT'S SO EASY TO HAVE LEASED EQUIPMENT WORKING FOR YOUR PROFIT! WRITE TODAY FOR COMPLETE INFORMATION
Preparative gas chromatograph, called the Prep/Partitioner, separates sam ples up to 10 ml. The unit uses a hot wire thermal conductivity detector and nitrogen as carrier gas, without in version peaks according to the com pany. Columns up to 2 6 feet in length can be assembled with Pyrex glass sections that are used. The price of the instrument is one of main features claimed by the com pany: $ 2 7 5 0 . Fisher Scientific Co. P-25 Safety
Trinock, Inc., Dept. 421 20-26 N. Moore St., New York City 13, Ν. Υ. Show me how leasing can save me time and money'. NAME OF INDIVIDUAL. NAME OF FIRM ADDRESS— CITY
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Circle No. 179 on Readers' Service Card 130 A
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ANALYTICAL CHEMISTRY
Pipettors
New items are designed for use with pipets ranging in size from lambdas to 20 cc. T h e micro size, recommended for lambda pipets, is said to fit the hand —it is 5 1 / 2 inches long. All t h e pipet tors can b e operated with one hand and can be autoclaved, according to the company. T h e y are made of borosilieate glass and plastic, and all p a r t s of the pipet holder are interchangeable. K e r n Chemical Corp. P-26
Coleman precision nephelometers provide accurate, reproducible photometric measurement of Tyndall effect—this permits specifica tion of liquid clarity to ± 1 % over the range from absolute clarity to faintly-visible haze. This range is quantified by the Coleman Nephelos Scale, the one numerical notation system recog nized t h r o u g h o u t the world for expressing liquid clarity. In addition t o clarity control, Coleman nephelometers permit accurate measurement of minute concentrations of constituents in suspension . . . eliminate filtering, washing, drying and weighing. The Coleman Model 7 PhotoNephelometer is a single-purpose instrument for measuring scattered light> the Model 9 Nepho-Colorimeter is a multi-purpose instru ment combining the functions of a nephelometer, colorimeter and turbidimeter. Ask for Bulletin AB-246 and b i b l i o g r a p h y of n e p h e l o m e t r i c procedures. COLEMAN INSTRUMENTS, INC. MAYWOOD, ILLINOIS Circle No. 45 on Readers' Service Card