The Hewlett Packard 1100 Series HPLC consists
of an online vacuum degasser, a binary pump, a standard autosampler,
a diode array detector and a fluorescence detector. The high-pressure
mixing gradient pump gives an excellent retention time precision
and baseline level separation. An autosampler is freely accessible
to different vials with precise programmable injection volumes
from 0.1 µL to 1.8 mL. The diode-array detector has 1024
diodes and a programmable slit to optimize wavelength resolution,
while the deuterium and tungsten lamps ensure the highest light
output from 190 to 950 nm.
The fluorescence detector has the ability to simultaneously
monitor and measure up to four signals in a single run. The
1100 Series modules and ChemStation software are combined into
well-integrated systems that meet a wide range of analytical
applications from pharmaceutical research to environmental study.
The 1100 Series units located in EQAL are used for quantification
of algal and plant pigments in natural water and lake sediment
samples. The instrument is also used to detect and quantify
toxins produced by cyanobacteria.