Methanol, acetonitrile, butanol, and dichloromethane were purchased from Thermo Fisher Scientific (Thermo Fisher, Waltham, MA, USA), and formic acid and ammonium acetate were from DiKMA Technologies (Beijing, China). Ultrapure water (18.2 MΩ) was prepared using a Milli-Q system (Millipore Billerica, Burlington, MA, USA).
Ammonium acetate
Manufactured by Dikma Technologies
Sourced in United States, China
Ammonium acetate is a chemical compound with the formula CH3COO-NH4+. It is a crystalline solid that is soluble in water and commonly used in various laboratory applications.
Automatically generated - may contain errors
Lab products found in correlation
Formic acid, by Dikma Technologies (4 mentions)
Methanol, by Thermo Fisher Scientific (2 mentions)
Acetonitrile, by Thermo Fisher Scientific (2 mentions)
Hexane, by Dikma Technologies (2 mentions)
Butanol, by Thermo Fisher Scientific (1 mentions)
Ethyl acetate, by Thermo Fisher Scientific (1 mentions)
Acetone, by Thermo Fisher Scientific (1 mentions)
Hplc grade acetonitrile acn, by Merck Group (1 mentions)
Milli q gradient water purification system, by Merck Group (1 mentions)
Hplc grade methanol, by Merck Group (1 mentions)
Heparin sodium, by Merck Group (1 mentions)
Sodium fluoride naf, by Merck Group (1 mentions)
Activated carbon, by Merck Group (1 mentions)
Dichloromethane, by Dikma Technologies (1 mentions)
Methanol, by Dikma Technologies (1 mentions)
Hplc grade acetonitrile, by Thermo Fisher Scientific (1 mentions)
Acetic acid, by Dikma Technologies (1 mentions)
7 protocols using ammonium acetate
1
Solvents and Water Purification for Analysis
2
Artesunate-loaded PEGylated Nanoparticles
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Artesunate (ARS) was purchased from Chongqing Holley Wuling Mountain Pharmaceutical Co., LTD. 1,2-Distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy (polyethylene glycol)-2000] (DSPE-PEG2000) was purchased from Shanghai Advanced Vehicle Technology Pharmaceutical Ltd (Shanghai, China). d -α-Tocopheryl polyethylene glycol succinate (TPGS), C12, 1-ethyl-(3-dimethylaminopropyl) carbonyl diamide hydrochloride (EDCI), and 4-dimethylaminopyridine (DMAP) were purchased from Aladdin Industrial Corporation (Shanghai, China). Methanol and acetonitrile (chromatography pure) were purchased from Tianjin Kemeng Chemical Industry & Trade Co., LTD. The dialysis bag (intercept molecular weight: 12–14 kDa) was bought from Shanghai Green Bird Technology Development Co., LTD. acetonitrile (chromatography pure) was purchased from Fisher Scientific (USA). Formic acid and ammonium acetate were purchased from Dikma Technologies, Inc. All other ingredients were analytically pure.
3
Comprehensive Analytical Protocols for Sulfur Drugs
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Sulfaguanidine was obtained from INTERNATIONAL LABORATORY (New Jersey, USA), Sulfanilamide, Sulfisomidine, Trimethoprim, Sulfacetamide, Sulfathiazole, Sulfadiazine, Sulfapyridine, Sulfamerazine, Sulfamoxol, Sulfamethizole, Sulfamethazine, Sulfamethoxypyridazine, Sulfameter, Sulfamonomethoxine, Sulfachlorpyridazine, Sulfadoxine, Sulfamethoxazole, Sulfisoxazole, Sulfabenzamide, Sulfaquinoxaline, Sulfadimethoxine, Sulfaphenazole and Sulfanitran were obtained from Dr EhrenstorferGmbH (Augsburg, Germany). HPLC-grade acetonitrile (ACN) was obtained from Merck (Darm-stadt, Germany), methanol, acetone and ethyl acetate were purchased from Thermo Fisher (Waltham, USA). Hexane, formic acid and ammonium acetate were purchased from Dikma (Lake Forest, USA). Superior pure petroleum ether was purchased from Tianjin Kemiou Chemical Reagent (Tianjin, China). Sodium chloride (NaCl) and magnesium sulfate anhydrous were purchased from Tianjin Yongda Chemical Reagent (Tianjin, China) and were of analytical grade. Primary secondary amine (PSA) was supplied by Dikma (Lake Forest, USA). C18 was purchased from Welch (40–50 mm, Maryland, USA). Ultrapure water was prepared using a Millipore Milli-Q Gradient Water Purification System (Massachusetts, USA).
4
Quantification of Bioactive Compounds Using HPLC
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IMMH-010, IMMH-010 maleate, YPD-29B, IMM-H008BP (internal standard, IS1), and IMM-H008B (IS2) (all compounds with purity>99%) were provided by the Department of Chemosynthesis, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College. HPLC-grade methanol was obtained from Merck (Darmstadt, Germany). Ammonium acetate was purchased from Dikma (California, United States). Heparin sodium and sodium fluoride (NaF) were purchased from Sigma-Aldrich (Missouri, United States). Water was purified by a Milli-Q ultrapure water system (Merck, Darmstadt, Germany).
5
Removal of Micropollutants from ROC
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Reverse osmosis concentrate was taken from a municipal wastewater treatment plant in which biologically treated secondary effluent was subjected to MBR+RO system to remove organics and salts for water reclamation. The characteristics of the ROC are shown in Table 4 .
Activated carbon was purchased from SIGMA-ALDRICH Company with a particle size of 20–40 meshes. Tert-Butanol (TBA), p-CBA, tetracycline, metoprolol, atrazine, methanol, dichloromethane, hexane and ammonium acetate were purchased from DIKMA (Beijing, China) with the grade of chromatographic pure. The other reagents used in experimental are analytical pure. Ultrapure water was produced by Thermo SMART 2 PURE ultrapure water meter (μ = 18.2 MΩ × cm, Waltham, MA, USA).
Activated carbon was purchased from SIGMA-ALDRICH Company with a particle size of 20–40 meshes. Tert-Butanol (TBA), p-CBA, tetracycline, metoprolol, atrazine, methanol, dichloromethane, hexane and ammonium acetate were purchased from DIKMA (Beijing, China) with the grade of chromatographic pure. The other reagents used in experimental are analytical pure. Ultrapure water was produced by Thermo SMART 2 PURE ultrapure water meter (μ = 18.2 MΩ × cm, Waltham, MA, USA).
6
HPLC-based Compound Purification Protocol
7
Determination of Dicyandiamide, Cyromazine, and Melamine
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Dicyandiamide, cyromazine, and melamine (> 99.5% purity for each) were obtained from the Hebei Institute of Food Quality Supervision Inspection and Research (Shijiazhuang, China). Methanol (HPLC grade), acetonitrile (HPLC grade), ammonium acetate (analytical grade), and acetic acid (analytical grade, 36%) were purchased from Dikma Technologies Inc. (Tianjin, China).
Mobile Phase A was prepared by dissolving 0.77 g of ammonium acetate in 1000 mL of water, and adjusting the pH to 4.7 using acetic acid. Mobile Phase B was acetonitrile. DCD, CYR, and MEL stock standard solutions, 1000 mg/L, were prepared by dissolving the compounds, respectively, in a mixture of acetonitrile and water (8:2), and were stored at 4°C in amber glass bottles. A fresh working standard solution was prepared daily by diluting the stock solution with the mobile phase for different studies. The solution and methanol were filtered through 0.22-μm microporous polyvinylidene fluoride membranes before use. Distilled water was further purified by a Molelement 1820a ultrapure water apparatus (Molecular Devices Limited, Shanghai, China) and then filtered through a 0.45-μm microporous membrane of mixed cellulose ester.
Mobile Phase A was prepared by dissolving 0.77 g of ammonium acetate in 1000 mL of water, and adjusting the pH to 4.7 using acetic acid. Mobile Phase B was acetonitrile. DCD, CYR, and MEL stock standard solutions, 1000 mg/L, were prepared by dissolving the compounds, respectively, in a mixture of acetonitrile and water (8:2), and were stored at 4°C in amber glass bottles. A fresh working standard solution was prepared daily by diluting the stock solution with the mobile phase for different studies. The solution and methanol were filtered through 0.22-μm microporous polyvinylidene fluoride membranes before use. Distilled water was further purified by a Molelement 1820a ultrapure water apparatus (Molecular Devices Limited, Shanghai, China) and then filtered through a 0.45-μm microporous membrane of mixed cellulose ester.
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