Hollow fiber membrane probes for the in situ spectrometric monitoring of nitrogen trichloride formation during wastewater treatment

Application of an optimized system for the well-defined exposure of human lung cells to trichloramine and indoor pool air

“…Attention: NCI3 is in higher concentrations an explosively unstable compound when heated above its boiling temperature of 71 C and when catalysed by light or in the presence of heterogeneous catalysts. Isolafion of the pure compound and concentrations higher than 2 g/L in water should be avoided (Schlessinger 1966;Savickas et al 1989).…”

Mass-spectrometric evidence for the formation of bromochloramine and N-bromo-N-chloromethylamine in aqueous solution

“…By locating the membrane in a direct insertion membrane probe, fast response time (typically 5-30 s) and low detection limits (often low ppb levels) are achieved (13,20,21). MIMS has already proven useful in the detection of organic and inorganic chloramines (22)(23)(24)(25). In the present work, three systems are examined by the MIMS technique: NH2C1 + Br', NH2C1 + HOBr, and CH3NHC1 + HOBr.…”

“…It has also been applied to monitor environmentally significant samples (14)(15)(16) and for on-line monitoring of bioreactors (17)(18)(19). MIMS has already proven useful in the detection of organic and inorganic chloramines (22)(23)(24)(25). MIMS has already proven useful in the detection of organic and inorganic chloramines (22)(23)(24)(25).…”

Monitoring of chemical transformations by mass spectrometry

“…[67][68][69] MIMS was also performed to directly monitor the formation of organic chloramines 70 in situ in the chlorination of amines, and was also used to analyse toxic and labile inorganic compounds. 71,72 In a previous a study, Augusti and co-workers studied the mechanism, reaction intermediates, and kinetics of chloroform formation during the chlorination of organic compounds with sodium hypochlorite in an aqueous medium using the device shown in Fig. 3.…”