Turner Model 330 Spectrophotometer
• 210-1000 millimicron capability • 10 millimicron bandwidth • fakes Thomas Roto-Cell for rapid 2-cell scanning
m takes Thomas 10 mm Flow Cell Adapter and Flow-Through Probe for semi-automated procedures*
S P E C T R O P H O T O M E T E R , Turner M o d e l 3 3 0 . Diffraction g r a t i n g monochromator provides fixed 10 ιημ bandwidth. Solid-state a.c. power supply and ampli fier. Meter reads in absorbance a n d transmittance. Photometric accuracy ± 1 % T ; repeatability ± 0 . 2 5 % . Visible Range model covers 335-710 ιημ range. Stray light is held to less than 0.5%. Narrow bandwidth and low stray light result in resolution superior to that provided by instruments of comparable price. Useful for clinical and other routine testing. Sturdiness and sim plicity of operation make the instrument suitable for industrial and educational use. Setting of 100% Τ is accomplished by adjusting voltage input to tungsten lamp; feedback regulator circuit en sures stable performance. Output signal of 1 volt is pro vided for recorder or external readout. Wavelength range can be extended to 1000 ιημ by substitution of plug-in, near-IR photodiode, offered as accessory. Ultraviolet lamp is available to extend range to 210 ιημ; information on request. Sample holder takes cuvette 13 mm o.d. χ 100 mm long. Holder for cuvettes 19 mm χ 105 or 150 mm, is offered separately. Cuvettes not supplied.
Thomas Accessories for Model 330 Roto-Cell®. The Model 330 can be adapted for rapid scanning by means of the Thomas 9085-C51 Roto-Cell, a 2-place water-j acketed cell carrier. Sample and blank are interchanged instantly within the instrument by turning a knob. Flow Cell. Thomas 9085-F50 Plow Cell Adapter adapts Model 330 to semi-automated procedures. Takes 0.25 ml cell with. 10 mm light path. 9090-B10. Spectrophotometer, Visible Range Model 330, as described. Range 335 to 710 πιμ. With 3-wire cord and plug for 100 to 130 volts, 48 to 65 cycles, a.c; 50 watts. . .595.00
*Save time and increase accuracy by adapting the Model 330 to semi-automated procedures with Thomas Flow Cell Adapter, Flow-Through Probes, Digital Readout or Printout. See pages 974, 976, 983-987 of Thomas 1968 Catalog. Detailed bulletin sent upon request.
ARTHUR H. THOMAS COMPANY Scientific Apparatus and Reagents VINE STREET AT 3RD · P.O. BOX 779 * PHILADELPHIA, PA. 19105, U.S.A. Circle No. 81 on Readers' Service Card
118 A . ANALYTICAL CHEMISTRY
See ACS Laboratory Guide for All Products/Sales Office
