LOW COST/ ALOE U-V CUVETTES ROUND / MATCHED / ULTRAVIOLET TRANSMITTING For use with Beckman
74147A — Aloe U - V Cuvettes, r o u n d , set
DU Spectrophotometers
of
'/2%T
Available for the first time, these low cost, Aloe, ultraviolet transmitting, round cuvettes offer distinct advantages to all educational, industrial and other research laboratories. 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 . , ,f , , 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 r,oc o.,,^ , n-,·, in the 235-340 mu range where 9o'/c r ,, Tt τ 7 ι , oi all U-V measurements are made. (Not Recommended for use with Photomultiplier.)
74147B
74217E
Direct your order or request for additional
4
> matched to tolerance of $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. _,,„,-.-. ,, , , n .. » , A1 74217F — Aloe U-V Cuvette Adapter, ^ *_„„ Each $5.00 74217E — Aloe U-V Cuvette Adapter with matched set of 4 cuvettes. $25.00 ». *». * J ^ ο Γτ Λ7 ^ Aloe U-V Cuvette Adapter Carriage · · , -, — precision made, yet versatile. J ^ 74217D — Aloe U-V Cuvette Adapter Carriage, Each $32.00
information
to:
74217D
aloe
scientific
5 6 5 5 Kingsbury, St. Louis 1 2 , M o .
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COAST-TO
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Visit Our Booth N o . 5 4 A t The A n a l y t i c a l Chemistry Conference Circle No. 12 on Readers' Service Card
NOW! A low-cost G-M counting system every lab can afford 00
only Î695 *
RCL's new low-cost G-M Counting System is ideal for economy-minded highschool, college, and training laboratories where quality is important. Immediate delivery on complete system or individual components. System features: Model 20304—New Low-Cost Scaler with five digit direct glow transfer tube readout and 400-1600 V. high voltage power supply. Regulation: 0.5% for =t 10% line variation at 1,000 volts. Indication on panel mounted meter. Input sensitivity: 60 mv with a rise time of less than 5μ seconds. Factory preset at .25 volts. Resolving time is less than 40μ seconds. Cabinet or rack mounted. Front panel dimensions: 19" wide χ 4%" high. Model 30100—Vertical iron shield with lucite mount for end window detector. Model 10104—Halogen quenched end window detector with lite of 3 χ 1010 counts. Window thickness: less than 1.5 mg/cm ! . Student proof—cannot be damaged by excess voltage. Model 30905—Precision timer accurate to within 0.1 second. Range: 1 second to 60 minutes with one second steps. Model 31901—4 ft. G-M cable. Model 30500—Uranium glass test sample. *Export model slightly higher. For additional in formation, Write Dept. 220
A RADIATION COUNTER LABORATORIES, INC. . 5 1 2 1
W E S T
G R O V E
S T R E E T
·
S K O K I E ,
I L L I N O I S .
U . S . A .
·
O R c h a r d
3 - 8 7 0
Circle Ng. 141 on Readers' Service Card
VOL. 32, NO. 2, FEBRUARY 1960
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111 A
