Tag: M.W=600-700

Yanina, Irina Yu. published the artcileImmersion optical clearing of adipose tissue in rats: ex vivo and in vivo studies, Quality Control of 117-96-4, the main research area is diatrizoic acid dimethylsulfoxide adipose tissue; adipose tissue; diffusion coefficient; ex vivo and in vivo optical clearing; reduced scattering coefficient; refractive index.

Optical clearing (OC) of adipose tissue has not been studied enough, although it can be promising in medical applications, including surgery and cosmetol., for example, to visualize blood vessels or increase the permeability of tissues to laser beams. The main objective of this work is to develop technol. for OC of abdominal adipose tissue in vivo using hyperosmotic optical clearing agents (OCAs). The maximum OC effect (77) was observed for ex vivo rat adipose tissue samples exposed to OCA on fructose basis for 90 min. For in vivo studies, the maximum effect of OC (65) was observed when using OCA based on diatrizoic acid and dimethylsulfoxide for 120 min. Histol. anal. showed that in vivo application of OCAs may induce a limited local necrosis of fat cells. The efficiency of OC correlated with local tissue damage through cell necrosis due to accompanied cell lipolysis.

Journal of Biophotonics published new progress about Adipocyte. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Quality Control of 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

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

Lee, Minju published the artcileAbatement of Polychoro-1,3-butadienes in Aqueous Solution by Ozone, UV Photolysis, and Advanced Oxidation Processes (O3/H2O2 and UV/H2O2), Recommanded Product: Diatrizoic Acid, the main research area is polychorobutadiene water hydrogen peroxide ozone UV photolysis.

The abatement of 9 polychloro-1,3-butadienes (CBDs) in aqueous solution by ozone, UV-C(254 nm) photolysis, and the corresponding advanced oxidation processes (AOPs) (i.e., O3/H2O2 and UV/H2O2) was investigated. The following parameters were determined for 9 CBDs: Second-order rate constants for the reactions of CBDs with ozone (kO3) (< 0.1 - 7.9×103 M-1s-1) or with hydroxyl radicals (k•OH) (0.9×109 - 6.5×109 M-1s-1), photon fluence-based rate constants (k') (210 - 2730 m2 einstein-1), and quantum yields (Φ) (0.03 - 0.95 mol einstein-1). During ozonation of CBDs in a natural groundwater, appreciable abatements ( > 50% at specific ozone doses of 0.5 gO3/gDOC to âˆ?00% at â‰?1.0 gO3/gDOC) were achieved for tetra-CBDs followed by (Z)-1,1,2,3,4-penta-CBD and hexa-CBD. This is consistent with the magnitude of the determined kO3 and k•OH. The formation of bromate, a potentially carcinogenic ozonation byproduct, could be significantly reduced by addition of H2O2. For a typical UV disinfection dose (400 J/m2), various extents of phototransformations (10-90%) could be achieved. However, the efficient formation of photoisomers from CBDs with E/Z configuration must be taken into account because of their potential residual toxicity. Under UV-C(254 nm) photolysis conditions, no significant effect of H2O2 addition on CBDs abatement was observed due to an efficient direct phototransformation of CBDs.

Environmental Science & Technology published new progress about Conformers. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Recommanded Product: Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Boleda, M. Rosa published the artcileSurvey of the occurrence of pharmaceuticals in Spanish finished drinking waters, Recommanded Product: Diatrizoic Acid, the main research area is pharmaceutical tandem mass spectrometry finished drinking water pollution Spain.

Fifty samples of finished drinking waters (FDWs) from Spain covering 12 million inhabitants were tested for 53 pharmaceuticals pertaining to 12 different Anatomical Therapeutic Chem. (ATC) classification system codes. The studied compounds are a combination of most commonly consumed pharmaceuticals with other barely reported in the literature. Five compounds, azithromycin, clarithromycin, erythromycin, sulfamethoxazole, and ibuprofen were tentatively identified by liquid chromatog. coupled to tandem mass spectrometry (LC-MS/MS) in some samples (2 to 15 %), but only ibuprofen and azithromycin could be confirmed when analyzed by liquid chromatog.-high-resolution mass spectrometry (LC-HRMS) with a quadrupole-Orbitrap instrument. Concentration levels of ibuprofen in the pos. samples ranged from 12 to 17 ng/L (n = 6) while for azithromycin values from 5 to 9.5 ng/L (n = 3) were found. Ibuprofen fragmentation behavior in different mass spectrometry instrument configurations (triple quadrupole, quadrupole-ion trap, and quadrupole-Orbitrap) was evaluated.

Environmental Science and Pollution Research published new progress about Analgesics. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Recommanded Product: Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Casas, Monica Escola published the artcileBiodegradation of pharmaceuticals in hospital wastewater by staged Moving Bed Biofilm Reactors (MBBR), Application of Diatrizoic Acid, the main research area is hospital wastewater pharmaceutical MBBR biodegradation; Biodegradation; Conjugates; Degradation kinetics; Hospital wastewater; Pharmaceuticals; X-ray contrast media.

Hospital wastewater represents a significant input of pharmaceuticals into municipal wastewater. As Moving Bed Biofilm Reactors (MBBRs) appear to remove organic micro-pollutants, hospital wastewater was treated with a pilot plant consisting of three MBBRs in series. The removal of pharmaceuticals was studied in two experiments: (1) A batch experiment where pharmaceuticals were spiked to each reactor and (2) a continuous flow experiment at native concentrations DOC removal, nitrification as well as removal of pharmaceuticals (including X-ray contrast media, β-blockers, analgesics and antibiotics) occurred mainly in the first reactor. In the batch experiment most of the compounds followed a single first-order kinetics degradation function, giving degradation rate constants ranged from 5.77 × 10-3 to 4.07 h-1, from -5.53 × 10-3 to 9.24 × 10-1 h-1 and from 1.83 × 10-3 to 2.42 × 10-1 h-1 for first, second and third reactor resp. Generally, the highest removal rate constants were found in the first reactor while the lowest were found in the third one. This order was inverted for most compounds, when the removal rate constants were normalized to biomass, indicating that the last tank had the most effective biofilms. In the batch experiment, 21 out of 26 compounds were assessed to be degraded with more than 20% within the MBBR train. In the continuous flow experiment the measured removal rates were lower than those estimated from the batch experiments

Water Research published new progress about Analgesics. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Application of Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Boleda, M. Rosa published the artcileValidation and uncertainty estimation of a multiresidue method for pharmaceuticals in surface and treated waters by liquid chromatography-tandem mass spectrometry, SDS of cas: 117-96-4, the main research area is validation uncertainty estimation multiresidue pharmaceutical water; liquid chromatog tandem mass spectrometry.

The estimation of measurement uncertainty associated with quant. results is essential to assure the reliability of anal. methods and mandatory when a laboratory implements ISO standard 17025. A quant. multi-residue method based on solid-phase extraction (SPE) and ultra-performance liquid chromatog. tandem mass spectrometry detection (LC-MS/MS) was developed and validated for the anal. of 53 pharmaceuticals (analgesics, anti-inflammatories, antibiotics, lipid regulating agents, cholesterol lowering stating agents, gastric drugs, x-ray, and miscellaneous compounds such as sildenafil, prednisone, triclosan, chlorhexidine and miconazole) in surface and drinking waters. A full validation of the method, according to ISO standard 17025 procedure, was performed. Linearity (0.01-250 ng/L), intra-day precision (3-19% RSD in surface water and 2-19% RSD in drinking water) and inter-day precision (3-16% RSD in surface water and 1-18% RSD in drinking water), matrix effects (low matrix effects were observed for 50% of compounds in both matrixes), limits of quantification (0.2-40 ng/L in surface water and 0.2-30 ng/L in drinking water) were calculated The recoveries at 100 ng/L were >80% for 72 and 79% of the target compounds in surface and drinking waters, resp. The information obtained from the full method validation was used to estimate the expanded uncertainty and the uncertainties contributions of the different individual steps of the method for the determination of pharmaceuticals at trace levels in waters. Expanded relative uncertainties were 6-23% being the uncertainty associated with reproducibility the main contribution.

Journal of Chromatography A published new progress about Analgesics. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, SDS of cas: 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhao, Xiaodan published the artcileEnhanced abatement of organic contaminants by zero-valent copper and sulfite, Formula: C11H9I3N2O4, the main research area is copper sulfite iohexol organic contaminant oxidation waste water treatment.

Sulfate radicals (SO4·-) are highly efficient for the degradation organic pollutants. SO4·- can be produced by activation of sulfites, yet actual heterogeneous activators exhibit a lower reactivity for activation of sulfite to SO4·- at pH 7.0-8.0. Here we hypothesized that zero-valent copper can activate sulfite under mild conditions. We tested the reaction with iohexol, diatrizoate, atrazine, benzoic acid, and p-chlorobenzoic acid contaminants. Reactive radicals were identified by ESR, fluorescence spectrometry, and radical scavenging experiments Results show up to 90% abatement of contaminants by combining sulfite with zero-valent copper at pH 8.0. Moreover, zero-valent copper maintains a crystalline stability and satisfactory reusability with iohexol abatement efficiency up to 80% after five runs.

Environmental Chemistry Letters published new progress about Atmosphere. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Formula: C11H9I3N2O4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Jiang, J.-Q. published the artcileDrinking water treatment by in situ generated ferrate(VI), COA of Formula: C11H9I3N2O4, the main research area is ferrate organic micropollutant disinfection coagulation drinking water treatment.

The present study aims to investigate the efficiency of on-site produced ferrate(VI) for drinking water treatment as well as for the removal of micro pollutants. The study examined and validated the laboratory electrochem. production of ferrate(VI) and tested water treatment efficiency of the resulting ferrate(VI) in comparison with that of FeClSO4 and poly-aluminum chloride (PACl). The performance of water treatment was compared by the removal efficiency of turbidity, dissolved organic carbon, microbial count and trace organic micro pollutants. Major observations were that 0.5 mg/L of ferrate(VI) as Fe was sufficient to remove most of the contaminants and achieve complete disinfection irresp. of the original microbial counts. Ferrate(VI) has considerable oxidation potential to degrade commonly occurring trace organic micropollutants (other than melamine) in the Danube River water. In contrast, FeClSO4 or PACl cannot remove any trace micro pollutants.

Desalination and Water Treatment published new progress about Alkalinity. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, COA of Formula: C11H9I3N2O4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Azerrad, Sara P. published the artcileTransformation of X-ray contrast media in reverse osmosis brines by advanced oxidation processes, Application In Synthesis of 117-96-4, the main research area is iopromide diatrizoate RO brine advanced oxidation process wastewater treatment.

The transformation of two X-rays contrast media iopromide (IOPr; non-ionic) and diatrizoate (DTZ; ionic) in reverse osmosis (RO) brines during UVA-TiO2 oxidation was investigated. The scavenging effect of chlorides, alkalinity and fulvic acid (HA) was comparatively evaluated against ultrapure water. The transformation of both compounds followed a pseudo-first reaction order, but rate of IOPr oxidation was higher than DTZ regardless of the water matrix. In ultrapure water, 98% IOPr transformation was achieved compared to only 42% for DTZ after a 6 h experiment In contrast, transformation was significantly reduced in RO brines with only 18 and 9% transformation for IOPr and DTZ, resp., whereas chlorides displayed very low to none scavenging effect, fulvic acid and alkalinity decreased rate constants by about 50% due to competitive radicals scavenging. The scavenging effect of HA was more evident for DTZ than IOPr. The ratio of deiodination/transformation was higher in DTZ, indicating that the initial transformation involves deiodination, e.g. takes place predominantly in the triiodinated skeleton. In contrast, the ratio of deiodination/transformation was lower in IOPr, indicating that the initial transformation proceeds without deiodination, e.g. takes place predominantly in the side chains. Finally, in both cases, kinetic experiments showed that oxidation leads to iodide evolution without iodate formation.

Desalination and Water Treatment published new progress about Alkalinity. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Application In Synthesis of 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Dong, Zheng-Yu published the artcileThe application of UV-C laser in persulfate activation for micropollutant removal: Case study with iodinated X-ray contrast medias, Recommanded Product: Diatrizoic Acid, the main research area is UV laser micropollutant removal iodinated X ray contrast media; Electron shuttle; Hydroxyl radical; Iodinated X-ray contrast media; Sulfate radical; UV-C laser.

A novel light source UV-C laser was applied in persulfate (PS) activation to effectively remove iodinated X-ray contrast medias (ICMs) including iohexol (IOX), iopamidol (IPM) and diatrizoate (DTZ) in this study. Significant ICMs degradation was observed in UV-C laser/PS systems with pseudo first-order rate constants of 0.022-0.067 s-1. Sulfate radicals (SO·-4) were the main active species in the three ICMs degradation, and the steady-state concentrations ([SO·-4]ss) were 3.629 x 10-11 M (IOX), 1.702 x 10-11 M (IPM) and 1.148 x 10-11 M (DTZ), resp. Under the high intensity of UV-C laser, the optimal reaction efficiency was achieved at pH = 7.0 with PS concentration of 1.0 mM, and the degradation efficiency for IOX reached 93.8% within only 40 s. Both bicarbonate and chloride ions could inhibit the three ICMs degradation and the inhibition rate increased with the increase of ions concentration The kinetic models were established and the steady-state concentrations of radicals were calculated D. functional theory (DFT) calculations combined with experiments were used to derive the reaction pathways for three ICMs. Cyclic voltammetry measurements detected a lower redox potential peak in IOX degradation, revealing the existence of electron shuttles under the UV-C laser irradiation to promote the redox reaction. This study is the first report of UV-C laser activation of persulfate. It is a new advanced oxidation process mediated by very effective photolysis and active species formation.

Science of the Total Environment published new progress about Alkalinity. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Recommanded Product: Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem