6
Precautionary Labels
Read all labels and tags attached to the instrument. Although highly unlikely, personal injury or damage to the
instrument could occur if not observed.
2.2 Overview of Product and Function
The L100 analyzer is comprised of the following major components:
•
Sensor: contains the cell and TiO
2
(working electrode) and is the location for photocatalytic activity.
•
Electrode block: contains the reference and auxiliary electrodes.
•
UV LED as the light source: 400nm wavelength
•
Detector (potentiostat)
•
Port A and Port B for sample and blank solutions, respectively
•
Port W for waste solution
The L100 employs a unique nanotechnology-based photo-electrochemical technique for the determination of
COD in natural and wastewater samples in laboratory and field analyses. It is:
•
fast (a typical analysis takes less than 15 minutes),
•
sensitive (detection limit at 0.7 ppm level in Advanced Blue range),
•
environmentally friendly (does not require any toxic / hazardous chemicals),
•
robust, and
•
free of the matrix effect due to the highly effective photo-electrochemical system employed that is
capable of fully oxidizing a wide spectrum of organics.
The photocurrent generated is detected with a potentiostat.
The L100 analyzer provides digital readout of COD in ppm or mg/L units. It also provides the equivalent BOD value
(if this function is selected during the parameter set up).
When a user-generated or programmed method is selected, the on-screen menus and prompts direct the user
through the test. The L100 analyser can be connected to a PC with pre-installed software using a USB cable. See
"Note:" in Section 3.5
