Low Cost ALOE U-V Cuvettes • Round-Matched • Ultraviolet Transmitting For use with Beckman DU Spectrophotometers Available for the first time, these low cost, Aloe, ultraviolet trans mitting, round cuvettes offer dis tinct advantages to all educational, industrial and other research lab oratories. Multiple problem of low cost, accurate U - V cuvettes now solved with these round, matched cuvettes. Proven in laboratory use over a year. No unusual etching noted when 4 normal acid or alkali concentrations were allowed to stand for as long as two hours. They compare most favorably in accuracy, to say nothing of cost, with conventional square " q u a r t z " cuvettes in the 235-340 mu range where 9 5 % of all U - V measure ments are made. (ATot Recommended for use with Photomultiplier.)
74147B
74217E
74147A—Aloe U-V Cuvettes, round, set of 4, matched to tolerance of Yt % T.$20.00 74147B — Aloe U-V Cuvettes, round, set of 12, matched to tolerance of 1% Τ $24.00 Accessories:
Precision Molded Adapter holds cuvettes in firm position. 74217F — Aloe U^V Cuvette Adapter, each $ 5.00 74217E - r Aloe U-V Cuvette Adapter with matched set of 4 cuvettes . . . $25.00 74217D — Aloe U-V Cuvette Adapter Carriage, each $32.00
74217D
NEW PRODUCTS Portable Temperature Chamber Model 7000A gives 7 2 ° F. stability during prolonged runs over the range - 1 0 0 ° to +500° F. Can be preset for hot-cold cycling at alternate tempera tures. Auxiliary timer is optional extra. Delta Design, Inc. P-13 Transistorized Power Supplies Two models, 62-140 and 62-143, have d.c. output ranges of 0 to 2 amps, and 0 to 15 amps., respectively. Voltage output on both is 0.5 to 32 volts. In put full load at 115 volts, 60 to 400 cycle are 2 amps, and 10 amps., re spectively. Dressen-Barnes Corp. P-14 W a t e r Sample Evaporator Automatic unit continuously collects, weighs, concentrates, and records as
many as a million samples into a final sample of any desired concentration for puritv tests. Diamond Electronics. P-15 Transistorized Power Supply Type SCRT 32-15-1 uses solid state switches and transistors; provides 0 to 15 amps, at 10 to 32 volts d.c. Both sides float with respect to ground. Del Electronics Corp. P-16 Self-Heating Sectioning Knife
Direct your order or request for additional information to:
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Tissue-mat contains its own heating element in the beryllium-copper blade, providing continuous 82° C. for sec-
