Our new LC valves: half the cost for the some performance
Chemically inert. Only Teflon contacts the stream. Zero dead volume Manual or Automatic Here's the way to save money and still get the same performance from your LC valves. New Rheodyne Type 50 Teflon Rotary Valves can be used for chromatography, sample injection, column switching, recycling, reagent switching, fraction collection, stream sampling and guantitative reagent injection. They are available as 3-way Teflon rotary valves for $70 in the 0.8 mm bore units. $72 for 1.5 mm bore units. Four-way Teflon rotary valves to inter change two streams are priced at $70 and $72 respectively. Six-position valves to select any one of six streams are priced at $85 and $87 respectively A sample injection valve, supplied with a 0.5 ml sample loop and luer connector for syringe, is priced at $85. Ask for our new data sheet Complete data and ordering infor mation are available right now. Call or write Rheodyne, 2809-10th St., Berkeley, California 94710. Phone (415) 548-5374.
neuj HPLC volve. S290. And it's easy to turn tool
7 0 0 0 psi pressure rating Removable sample loop 10 microliter or larger sizes Accessory loop filler port minimizes sample wastage High resolution flow passages There's no more convenient nor more effective sample injection valve on the market than the new Rheodyne 70-10. Use it up to 7000 psi and inject sample volumes of 10 microliters or larger through a sample loop which provides superior volumetric reproduci bility and overall chromatogram consistency. Mechanically, the Model 70-10 is so constructed that it turns with minimal effort.
New
Γίουυ uue give you the best of two volves.
Use the new Rheodyne Model 7120 Syringe Loading Sample Injector Valve in two ways. Use it to fill loops conventionally for maximum precision or in the partial loop variable volume filling mode with only 0.5 microliter sample loss. Here's the valve for maximum versatility in HPLC sample injection. Load the sample by syringe through built-in needle port. Works up to 7000 psi. The removable sample loop is available in sizes of 10 microliters up.
The basic Model 70-10 comes with a 20 μΙ sample loop. Sample loops of 10, 50 and 100 μΙ are available for approximately $20 extra each. The Model 70-11 Loop Filler Port which minimizes waste of sample liquid in loading costs $48.
This new Rheodyne Sample Injector Valve represents a significant improve ment over our own as well as other "universal injectors." From a price, performance and convenience aspect, there's no better injector available. Speaking of prices, the Model 7120 with a 20 microliter sample loop sells for $490. Sample loops from 10 microliters to 2 milliliters are offered.
More information
More information
For more information, please address Rheodyne, 2809- 10th Street, Berkeley, California 94710. Phone (415) 548-5374.
Ask us for complete data. Call or write Rheodyne Company, 2809 - 10th St., Berkeley, CA 94710. Phone (415) 548-5374.
RHEODYNE RHEODYNE RHEODYNE CIRCLE 179 ON READER SERVICE CARD
CIRCLE 180 ON READER SERVICE CARD
38 A · ANALYTICAL CHEMISTRY, VOL. 48, NO. 1, JANUARY 1976
CIRCLE 181 ON READER SERVICE CARD
