Seven SAs standards, i.e., sulfacetamide (SCT), sulfamerazine (SMR), sulfanilamide pyridine (SPD), sulfadizine (SDZ), sulfamonomethoxine (SMM), sulfamethoxazole (SMX), and sulfadimethoxine (SDM), with the individual purity ≥ 98%, were all purchased from Macklin (Shanghai, China); their chemical structures and related pKa and logP values are shown in Figure S1 . Chromatographic pure acetonitrile (ACN) was obtained from ANPEL Laboratory Technologies (Shanghai, China), with purity ≥ 99.9%. Chromatographic pure acetic acid (HAc) was provided by Tianjin Kemiou Chemical Reagent Co., Ltd. (Tianjin, China), with purity ≥ 98.8%. Analytical pure ACN, methyl alcohol (MeOH), dimethylsulfoxide (DMSO), tetrachloroethane (C2H2Cl4), chlorobenzene (C6H5Cl), dichloromethane (CH2Cl2), tetrachloromethane (CCl4), formic acid, n-hexane, and anhydrous sodium sulfate were all attained from Sinopharm Chemical Reagent (Shanghai, China), with individual purity ≥ 99.5%. Ultrapure water with the specific resistance of 18.2 MΩ.cm produced by Pall Cascada lab water purification system (Pall Corp., Westborough, MA, USA) was used for aqueous solution preparation throughout the present study.
Pall cascada lab water purification system
Manufactured by Pall Corporation
Sourced in United States
The Pall Cascada lab water purification system is a water purification device designed for laboratory applications. It utilizes a multi-step filtration process to produce high-quality, purified water. The system's core function is to remove various contaminants, such as particles, microorganisms, and dissolved ions, from the incoming water supply, resulting in water that meets the required purity standards for laboratory use.
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Lab products found in correlation
Anhydrous sodium sulfate, by Sinopharm (1 mentions)
Sulfamethoxazole, by Maclin Biochemical Technology (1 mentions)
N hexane, by Sinopharm (1 mentions)
Formic acid, by Sinopharm (1 mentions)
Hplc grade acetonitrile acn, by J&K Scientific (1 mentions)
2 4 6 trichlorophenol 2 4 6 tcp, by Merck Group (1 mentions)
Methanol meoh, by J&K Scientific (1 mentions)
Ferric chloride hexahydrate, by Sinopharm (1 mentions)
2 protocols using pall cascada lab water purification system
1
Quantitative Analysis of Sulfonamides
2
Functionalized Carbon Nanotubes for Phenol Removal
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Ferric chloride hexahydrate (FeCl 3 •6H 2 O), ethylene glycol (EG), polyethylene glycol 4000 (PEG-4000), anhydrous sodium acetate (NaAc), tris(hydroxymethyl)aminomethane hydrochloride (Tris), HPLC grade formic acid and acetic acid (HAc) were all obtained from Sinopharm Chemical Reagent Co., Ltd (Shanghai, China). Carboxyl-functionalized multiwalled carbon nanotubes (O.D. 20-30 nm, length 0.5-2 µm) were supplied by Chengdu Organic Chemistry Co., Ltd (Chengdu, China). Dopamine hydrochloride (98%) was purchased from Aladdin (Shanghai, China). HPLC grade reagents 2-chlorophenol (2-CP), 4-chlorophenol (4-CP), 2,6-dichlorophenol (2,6-DCP), 2,4-dichlorophenol (2,4-DCP) and 2,4,6-trichlorophenol (2,4,6-TCP) were obtained from Sigma-Aldrich (Shanghai, China). HPLC grade acetonitrile (ACN) and methanol (MeOH) were purchased from J&K Scientific (Shanghai, China).
Throughout the study, ultrapure water with the specific resistance of 18.2 MΩ cm was produced using the Pall Cascada™ lab water purification system (Pall Corp., USA) and was used for the preparation of aqueous solution. All other solvents and chemicals were of analytical grade and used directly without further purification.
Throughout the study, ultrapure water with the specific resistance of 18.2 MΩ cm was produced using the Pall Cascada™ lab water purification system (Pall Corp., USA) and was used for the preparation of aqueous solution. All other solvents and chemicals were of analytical grade and used directly without further purification.
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