Page 14 - 1_Environmental analysis

SCA-130-106

■ Particle tolerance of the TOC-L series ■ Settings
This test was carried out using a TOC-L  Injection volume 90 µL
system (TOC-L CPH including ASI autosampler  TC measurement for the particle test
with integrated stirring option).  NPOC measurement in the autosampler

 Stirrer in the ASI-L,
 medium stirring speed
 No multiple injection

Used Cellulose-Standard:
Cellulose powder MN 100
Particle size: 20-100µm
Supplier: Machery-Nagel

■ Results
The cellulose suspension was injected five
■ System Configuration times according to the above settings.
- TOC-L CPX
- ASI-L (40ml recommended) with particle NPOC = 98,4 ± 2,2 mg/l (RSD = 2,27 %).
needle l This corresponds to a recovery of 98,4 %.
- Stirrer option .
- Offline-Port can be used too

The TOC-L CPH was first calibrated using the
automated dilution function in the range of 10
– 100 mg/L.

Abb.2 Peak graph of cellulose-suspension

These values are clearly within EN DIN
specifications

Figure 1 Calibration curve 10-100mg/L