classic ambient-temperature: 20
mm for absorbance, 10 mm for fluorescence;
4 mm; low-temperature absorbance:
syringes: Unimetrics£¿glass syringes;
low- temperature syringes also
ceramic (i.e., fired sapphire)
from valves to observation cell:
user£¿s choice of Tefzel£¿or stainless
steel; from observation cell to
waste syringe: Teflon£¿
tubes: quartz for absorbance and
fluorescence models, stainless
steel for low-temperature model.
a polymer inert to almost all
with accessible ports with easy
on/off fitting of water and gas
lines to bath chamber for thermostatting
and degassing of bath fluid and
exposed syringe plungers.
water bath chamber is made of
Delrin£¿ a dense (1.56g/cm3) polymer.
syringes of different sizes provides
reagent ratios to 1:11.
drive system; one plunger for
both syringes; independent movement
of syringes and valves for convenience
in filling and flushing.
interlock system for 100% assurance
against misfiring, active with
and without Olis computer control.
cast-aluminum channel (0.5 cm
thick) and optical railing (1
cm thick) for high structural
alignment of stopped-flow observation
ports within sample compartment
of host spectrometer.