new products
Monochromator. The Model 205 TOC analyzer. The Model 1020A TOC
high-throughput 500-mm-focal-length monochromator is designed for 120 150 mm gratings. The monochromator offers both lateral and axial exit ports, as well as two entry ports. Additional gratings at f/4.3 and even f/6.9 are also available. McPherson
analyzer distinguishes varying TOC, TC, or TIC levels from 50 µg/L to 10,000 µg/mL. The system also analyzes samples over three orders of magnitude with a single calibration curve and uses U.S. EPA-, ASTM-, and Standard Method-approved combustion technology. Other features include magnetic stirring, large-i.d. sample pathways, and improved sample transfer techniques. OI Analytical
INSTRUMENTATION Submicroliter dispensing. The SMTRH submicroliter dispenser uses the CeramPump valveless piston pumping principle and contains a fluid path of zirconium and ceramic. The pump is driven by a precision stepper motor and allots 500 nL–5 µL per dispense. Other features include a flow control ring graduated in 450 divisions and stroketo-stroke precision of 1% or better.
Fluid Metering Photodetector. The UDT-44D photodetector provides isolation between 16 elements and a cross-talk level of
