Page 2 - 6_TOC in daily practice

6. TOC process analysis

6.1. Continuous TOC/TN determination in wastewater 6.6. Continuous TOC determination on airports
treatment plants 6.7. TOC-4200 – measurement range up to 55,000 mg/L TOC
6.2. TOC process analysis in the paper industry 6.8. TOC-4200 – Carryover free TOC determination
6.3. Continuous TOC determination in the chemical industry 6.9. Monitoring of cooling water with TOC-4200
6.4. Continuous condensate monitoring using the TOC-4200 6.10. Continuous TOC determination in Petrochemistry
6.5. TOC-4200 with high sensitivity option

Laboratory analysis yields comprehensive and detailed results Various types of sampling systems as well as kits and options
but, depending on circumstances, requires much time – time for the many diverse applications are therefore essential. In ad-
that is often not available during ongoing operations. For this dition to suitable equipment, robustness and service life of the
reason, operators of different types of plants increasingly use instrument (availability) are of major importance. After all, it is
sum parameters, which can also be determined continuously important that the analyzer can measure autonomously and
during the actual process. Contrary to conventional laboratory transmit reliable analytical data.
analysis, it is not an individual substance but an entire sub-
stance group that is determined here. In process waters from With its TOC-4200 series, Shimadzu offers an online analyzer
the chemical industry, sum parameters serve as an indicator of that, with its various modules, kits and options, provides ex-
contaminations or all kinds of substance loads. actly the flexibility needed and can be equipped for the most
diverse applications. A selection of sampling techniques is
One of the most important chemical sum parameters is the available: from a single-stream sampler to a sample exchanger
TOC. It is a measure of the organic pollution level or the organ- for six different sample streams, without or with homogenizer
ic constituents in the matrix. for water containing particles.

Particularly during process control it is important to obtain The TOC-4200 stands out not only in terms of its robustness
fast, continuous and informative data on the organic pollution but also by its reliability. The TOC-4200 already integrates the
levels of waters. TOC process analysis offers this possibility. most advanced communication channels to the control room.
The sample is fed continuously to the instrument for subse- In addition to the conventional communication modes, a Mod-
quent measurement. The instrument sends the analytical data bus communication protocol is available. An optional web
to the control room, which can react promptly to any possible browser enables access to the instrument from any network-
process changes. connected computer.

One of the most important attributes of a TOC process analyzer More information can be found in various application notes
is its versatility. Since a TOC process system is not available (for instance ‘TOC determination in the paper industry, sewage
‘off-the-shelf’, each measurement task must be customized to treatment plants and power plants’). In addition to TOC pro-
the particular measuring problem, the matrix and the sampling cess analysis, information is also available on the application
location. The analyzer must be tailored to the specific measur- areas ‘Pharmaceutical industry’, ‘Chemical Industry’, ‘TOC spe-
ing task and not vice versa. cial applications’, ‘TOC in daily practice’ and ‘Environmental
analysis.’