Swimming pools include reactive compounds, including the disinfectants, cleaning compounds and several compounds released by bathers to form disinfection by-products (DBPs). Medical studies, including incidence and distribution of infectious diseases have shown adverse effects on health associated with the exposure to DBPs present in indoor swimming pool atmosphere.

cleaning compounds and several cleaning compounds and several cleaning compounds and several compounds released by bathers to form compounds released by bathers to form compounds released by bathers to form compounds released by bathers to form disinfection by-products (DBPs). Medical disinfection by-products (DBPs). Medical disinfection by-products (DBPs). Medical studies, including incidence and distribution studies, including incidence and distribution studies, including incidence and distribution of infectious diseases have shown adverse of infectious diseases have shown adverse of infectious diseases have shown adverse of infectious diseases have shown adverse effects on health associated with the effects on health associated with the effects on health associated with the effects on health associated with the exposure to DBPs present in indoor exposure to DBPs present in indoor exposure to DBPs present in indoor exposure to DBPs present in indoor swimming pool atmosphere. swimming pool atmosphere. swimming pool atmosphere. swimming pool atmosphere.

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HPR-40 DSA Membrane Inlet Mass Spectrometer - MIMS

Membrane Inlet Mass Spectrometry (MIMS)SOLUTIONS FOR DISSOLVED GAS ANALYSIS IN SWIMMING POOLS

ReferenceThe Membrane Introduction Mass Spectrometry (MIMS) technique provides a solution to these problems by specific and sensitive in-situ measurement of DBPs, as referenced by the recent publication:

“Analysis of chlorination by-products in swimming pool water by Membrane Introduction Mass Spectrometry – Influence of water physicochemical parameters1”

This study investigates the effect of analytical conditions on DBPs quantification and assesses the relevance of using MIMS for reliable analysis under typical swimming pool operating conditions.1 Lucie Tsamba (CSTB), Olivier Correc, Pierre Le Cloirec and Nicolas Cimetière (2019)Rapid Communications in Mass Spectrometry DOI: 10.1002/rcm.8399.

Key Features HPR-40 DSA MIMS system is

offered with a broad range of inlets, including flow through inlets with integrated thermocouple for in-situtemperature measurement, dual probe inlets for simultaneous analysis in liquid and headspace,and enzyme kinetics probes.

It allows for in-situ mass resolved determination of dissolved species with real time data acquisitionand display.

Mass range is 200 amu as standard,with 300 or 500 amu mass ranges offered as options.

Software applications providefor user control of the mass spectrometer, inlet system control, data acquisition from the mass spectrometer and external devices, temperature and pH probes for example.

The HPR-40 DSA mass spectrometer system detects low concentrations of disinfection by products, DBPs, such as THMs (trihalomethanes) and chloramines, in swimming pool water and can be used for both qualitative and quantitative analysis.

Example data

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Figure 1. Trend analysis showing MS data including chloroform, bromodichloromethane, dibromochloromethane, and bromoform.

0.0E+00

5.0E-13

1.0E-12

1.5E-12

2.0E-12

2.5E-12

0.0E+00

5.0E-12

1.0E-11

1.5E-11

2.0E-11

2.5E-11

3.0E-11

3.5E-11

0 10 20 30 40 50 60 70

Part

ial P

ress

ure

(Tor

r)

Part

ial P

ress

ue (T

orr)

Time (mins)

Di + Monochloroamine mz50

Monochloroamine mz53

CHBrCl2 + Chloroform mz83

CHBr2Cl mz131

Chloroform mz118

CHBr2Cl + CHBr2Cl mz129

Bromoform mz173

TDS

204

FIGURE 3

Figure 2. Dual probe sampling system for head space andliquid sampling.

Figure 3. Dissolved species probe.

FIGURE 2

FIGURE 1

Solutions for Dissolved Gas Analysis in Swimming Pools