Teledyne 6200E - Sulfides Analyzer - Manual (Page 40)

Getting Started Model 6200E Instruction Manual
40 M6200E Rev: A1
3.3.2. Interferences for H
2
S Measurements
It should be noted that the fluorescence method for detecting H
2
S is subject to interference from a
number of sources. Since the M6200E converts H
2
S into SO
2
and measures the UV fluorescence of
the SO
2
, the most common source of interference is from other gases that fluoresce in a similar
fashion to SO
2
, when exposed to UV Light such poly-nuclear aromatics (PNA), of which certain
hydrocarbons such as meta-xylene and naphthalene are the most pervasive. The M6200E has
been successfully tested for its ability to reject interference from most of these sources.
For a more detailed discussion of this topic, see Section 10.2.6.
NOTE
Once you have completed the above set-up procedures, please fill out the quality
questionnaire that was shipped with your unit and return it to Teledyne Analytical
Instruments. This information is vital to our efforts in continuously improving our
service and our products. Thank you.
User Notes: