Sayess, Rassil published the artcileAn improved method for total organic iodine in drinking water, Category: isoquinoline, the main research area is total organic iodine drinking water detection method; Analytical techniques; Drinking water; ICP-MS; Iodinated disinfection by-products; Total organic iodine.
A concise, rapid, and sensitive method is developed to measure organically-bound iodine in water. Total organic iodine (TOI) is used as an integrative surrogate that reflects the amount of iodinated organics in a water sample and is quantified using a refined method that builds on previous adsorption and detection approaches. The proposed method combines adsorption, combustion, and trapping of combustion products, with an offline inductively coupled plasma/mass spectrometer (ICP-MS) for iodide detection. During method development, three anal. variables (factors) were varied across two levels each in order to optimize the method for iodine recovery: 1) the sample pH prior to adsorption on the granular activated carbon (GAC); 2) the amount of base addition to the trap solution; and 3) composition of the ICP-MS wash solution These factors were tested with solutions of eight iodinated model organic compounds, two iodinated inorganic compounds, and field water samples using a full factorial exptl. design. An anal. of variance (ANOVA) and related statistical methods were deployed to identify the best combination of conditions (i.e., treatment) that results in the most complete recovery of iodine from the model compounds and the highest rejection of inorganic iodine. The chosen treatment for TOI measurement incorporates a sample pH of less than 1 prior to adsorption onto the GAC, a solution of 2% (volume/volume) tetra-Me ammonium hydroxide (TMAH) for trapping of combustion products, and a TMAH wash solution of 0.1% (volume/volume) for the ICP-MS.
Water Research published new progress about Combustion. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Category: isoquinoline.
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem