LMS Issue 6; 2013 | Seite 25

Pollution Monitoring

LMS? Issue 6 | 2013?

25

Increasing the Speed of Water Analysis

S

outh West Water is responsible for
monitoring the quality of water, and
the sewage system network in a region
of England. They do this through a
central analytical facility. In early 2010,
the ICP-MS instrument was identified
as due for renewal. After evaluation of
the top-three suppliers, the NexION®
300 ICP-MS from PerkinElmer was
selected. The flexibility offered by this
device, having both a collision and
dynamic reaction cell, ensures that
the lab is future proofed. It is fully

Online
Pollution
Monitoring

C

hemical Oxygen Demand (COD)
determines chemically oxidisable
components, which is the international
standard for measuring the environmental load of effluent and wastewaters. TOC
determines all organic components.
The online analyser division of
Metrohm offers a variety of analysers
that can be used for the automatic determination of COD levels. These analysers,
namely 2019 D and ADI 2045Ti, have
built-in digesters and condensers. The
final measurement can be done either
colourimetrically or by traditional titration with FAS.
The ADI 2045Ti is used for more
complex analyses. It is able to analyse
multiple streams and can be configured
to analyse more than one parameter. ?

Metrohm SA
Contact: Ravi Issari
Tel: [phone]
Email: [e-mail]

prepared to handle any changes in
sample matrices.
South West Water can be assured
of maximum uptime and unsurpassed
reliability with NexION. The innovative
triple-cone interface generates a tight

beam and helps to eliminate maintenance, while the patented quadrupole ion
deflector ensures that only ions are introduced into the cell. This provides a stable
signal. It has clearly been designed with
minimal and fast maintenance in mind.
The analysts at South West Water
found it easy to streamline their old
methods to cover the required 28 elements on the NexION, without increasing samples times. Using the FAST
system, it is possible to further reduce
cycle times. The team found the system

easy to use and that by tuning the auto
lens, it gives the best sensitivity. They
also believe that the scheduler is a great
tool for pre-condition testing and will be
beneficial during routine operations. ?

PerkinElmer
Contact: Chris de Jager
Tel: [phone]
Email: [e-mail]