Dihydroquercetin (DHQ) standards (1257117-20607065, 98% purity) were purchased from the National Institute for the Control of Pharmaceutical and Biological Products (Beijing, China). Deionized water was purified using a Milli-Q Water Purification system (Millipore, Billerica, MA, USA). Acetonitrile and acetic acid of HPLC grade were purchased from J&K Chemical Ltd. (shanghai, China). The rest of the solvents and chemicals used in this study were of analytical grade and purchased from Beijing Chemical Reagents Co. (Beijing, China). All solutions prepared for HPLC were filtered through 0.45-µm membranes (GuangFu Chemical Reagents Co., Tianjin, China) before use.
Acetic acid
Manufactured by J&K Scientific
Sourced in China
Acetic acid is a colorless, pungent-smelling organic compound with the chemical formula CH3COOH. It is a common laboratory reagent used in various applications.
Automatically generated - may contain errors
Lab products found in correlation
Acetonitrile, by J&K Scientific (3 mentions)
Milli q water purification system, by Merck Group (2 mentions)
Triethylamine, by J&K Scientific (2 mentions)
Ethanol, by J&K Scientific (2 mentions)
Methanol, by J&K Scientific (2 mentions)
Formic acid, by J&K Scientific (2 mentions)
Hydrochloric acid (hcl), by Sinopharm (2 mentions)
Phenanthrene, by Tokyo Chemical Industry (1 mentions)
Hplc grade acetonitrile, by J&K Scientific (1 mentions)
5 5 dimethyl 1 pyrroline n oxide dmpo, by Tokyo Chemical Industry (1 mentions)
Isopropanol ipa, by J&K Scientific (1 mentions)
γ maps, by Merck Group (1 mentions)
Itaconic acid, by Merck Group (1 mentions)
Ethylene glycol dimethacrylate, by Merck Group (1 mentions)
Sulfuric acid, by Thermo Fisher Scientific (1 mentions)
Toluene, by J&K Scientific (1 mentions)
Sodium dodecyl sulfate (sds), by Thermo Fisher Scientific (1 mentions)
Acetone, by J&K Scientific (1 mentions)
Hydrochloric acid (hcl), by Avantor (1 mentions)
Aniline, by J&K Scientific (1 mentions)
11 protocols using acetic acid
1
HPLC Analysis of Dihydroquercetin Standards
2
Biosurfactant Rhamnolipid for Hydrophobic Compound Removal
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The biosurfactant rhamnolipids was purchased from Hunan Zhijin Biotech Co., Ltd., Changsha, China. The biosurfactant was originally received as a blend of 2/3 mono-rhamnolipid and 1/3 di-rhamnolipid, and no further alteration was performed. It is a brown viscous liquid with approximate purify of 40%. The nonionic surfactant TX100 was with purity higher than 98%, and phenanthrene was with purity greater than 97%, both substances were obtained from Tokyo Chemical Industry Co., Ltd., Tokyo, Japan. Acetic acid was purchased from J&K Scientific Ltd., Beijing, China. The selected properties of above substances are shown in Table 1 .
3
HPLC Analysis of Flavonoid Standards
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Rutin, orientin, isoorientin, vitexin, and isovitexin standards with higher than 98% purity were obtained from the National Institute for the Control of Pharmaceutical and Biological Products (Beijing, China). Deionized water was purified by a Milli-Q water purification system (Millipore, Billerica, MA, USA). HPLC grade acetonitrile and acetic acid were purchased from J&K chemical Ltd. (Shanghai, China). The other chemicals were analytical grade and purchased from Beijing Chemical Reagents Co. (Beijing, China). All solutions were filtered through 0.45-μm membranes (GuangFu Chemical Reagents Co., Tianjin, China) before use for HPLC analysis.
4
Adsorption of Diphenhydramine on Natural Sands
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The natural sand samples SS and DS were collected from Shenzhen ocean beach and Tenggeli desert in China, respectively (Fig. S1† ). The diphenhydramine hydrochloride (DP) was obtained from Sinopharm Chemical Reagent Co., Ltd (Shanghai, China), with a purity >98%. Acetonitrile, acetic acid, triethylamine, isopropanol (IPA) and p-benzoquinone (BQ) were of high-performance liquid chromatography (HPLC) grade, and purchased from J&K Chemical Co., Ltd (Beijing, China). The spin trapping reagent 5,5-dimethyl-1-pyrroline N-oxide (DMPO) was obtained from Tokyo Chemical Industry Co., Ltd (Tokyo, Japan). All aqueous solutions were prepared with Milli-Q ultrapure water.
5
Comprehensive HPLC Analysis of Sulfonamides
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SMR, sulfathiazole, sulfadiazine, sulfadimethoxine, sulfisoxazole, sulfamethoxazole, sulfamethazine, ethyleneglycol dimethacrylate (EGDMA), γ-MAPS and itaconic acid were purchased from Sigma-Aldrich (Steinheim, Germany). N,N-dimethylformamide (DMF), 2,2′-azobis (2-isobutyronitrile) (AIBN), cyclohexanol, dodecanol, acetic acid and sodium phosphate were purchased from J&K Chemical (Beijing, China). High-performance liquid chromatography (HPLC)-grade methanol was obtained from Kermel (Tianjin, China). All other reagents were of analytical grade. Phosphate buffer was used for the pH range 3.0–7.0, and mixed with acetonitrile to form the different proportions of the mobile phase. The analyte mixture was prepared in acetonitrile and filtered through a 0.45 µm membrane. The concentration of the analytes was 1 mg ml−1.
6
Polymer-based Microfluidic Device Fabrication
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Aniline was purchased from J&K Chemical (Hong Kong, China) and used without further purification. Ammonium peroxodisulfate (APS) and perfluorodecyltrichlorosilane (FDTS) were obtained from Alfa Aesar (Lancashire, United Kingdom). Hydrochloric acid was obtained from VWR (Batavia, USA). The COC film (Grade 8007) was commercially available from TOPAS Advanced Polymer (Frankfurt, Germany). Indium tin oxide (ITO) glass was obtained from South China Xiang Science & Technology (Shenzhen, China). Cu sulfate pentahydrate, sulfuric acid, and sodium dodecyl sulfate were purchased from Acros Organics (Geel, Belgium). Ethanol, 2-propanol, acetone, acetic acid, formaldehyde, toluene, and sodium bicarbonate were purchased from J&K Chemical (Hong Kong, China).
7
Adsorption of Organic Pollutants on Dolomite
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The natural dolomite sample used in this work was obtained from Jinyuan Co., Ltd (Zhengzhou, China). Methylene blue (MB), diphenhydramine hydrochloride (DP), and tetracycline hydrochloride (TC) with purity >98% were purchased from Sinopharm Chemical Reagent Co., Ltd (Beijing, China). Chemical reagents including acetonitrile, acetic acid, methanol, and triethylamine were high-performance liquid chromatography (HPLC) grade, and purchased from J&K Chemical Co., Ltd (Beijing, China). The spin-trapping reagents 2,2,6,6-tetramethylpiperidine (TEMP) and 5,5-dimethyl-1-pyrroline N-oxide (DMPO) used for electron paramagnetic resonance (EPR) experiments were supplied by Tokyo Chemical Industry Co., Ltd (Tokyo, Japan). Milli-Q water (18 MΩ cm−1) was used to prepare all solutions.
8
Synthesis of Platinum, Gold, and Palladium Nanoparticle Catalysts
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The following materials were used as received: potassium tetrachloroplatinate(II) (K2PtCl4; 98%), silver nitrate (AgNO3; 99%), gold(III) chloride trihydrate [HAuCl4·3H2O; ACS reagent; 49.0% Au basis), palladium(II) acetylacetonate [Pd(acac)2; 99%], acetic acid (CH3COOH; 98%), sulfur powder (S; chemical grade), and oleylamine (primary amine; 95.4%) from J&K Scientific; aqueous HClO4 solution (ACS reagent; 70%) and Nafion 117 solution (5% in a mixture of lower aliphatic alcohols and water) from Aladdin Reagents; ethanol (99%), methanol (99%), and toluene (99.5%) from Beijing Chemical Works; and Vulcan XC 72 carbon powders (XC 72C) with a BET (Brunauer–Emmett–Teller) surface area of ca. 250 m2 g−1 and average particle sizes of ca. 40 to 50 nm from Cabot Corporation. Commercial Pd/C and Pt/C catalysts were purchased from Johnson Matthey. All glassware and Teflon-coated magnetic stir bars were cleaned with aqua regia, followed by copious washing with deionized water before drying in an oven.
9
Trace Metal Analysis in Chinese Waterbodies
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HCl, HNO3, and H2SO4 were of superior reagent
grade and received from Sinopharm Chemical Reagent Co., Ltd., Beijing,
China. Stock standard solutions of 1000 mg L–1 K,
Na, Ca, and Mg were obtained by National Center for Certified Reference
Materials, Beijing, China. Methanol, ethanol, formic acid, acetic
acid, and cetyltrimethylammonium chloride (CTAC) were analytical reagent
grade and obtained from J&K Scientific Ltd., Shanghai, China.
Pb(NO3)2, Co(NO3)2, Cr(NO3)3, Ni(NO3)2, Cu(NO3)2, Zn(NO3)2, and Cd(NO3)2 were all analytical reagent grade and supplied from
Shanghai Chemical Reagent Corporation. All water samples were taken
from West Lake, East Lake, Poyang Lake, Xixi Wetland, Yellow River,
and Yangtze River.
grade and received from Sinopharm Chemical Reagent Co., Ltd., Beijing,
China. Stock standard solutions of 1000 mg L–1 K,
Na, Ca, and Mg were obtained by National Center for Certified Reference
Materials, Beijing, China. Methanol, ethanol, formic acid, acetic
acid, and cetyltrimethylammonium chloride (CTAC) were analytical reagent
grade and obtained from J&K Scientific Ltd., Shanghai, China.
Pb(NO3)2, Co(NO3)2, Cr(NO3)3, Ni(NO3)2, Cu(NO3)2, Zn(NO3)2, and Cd(NO3)2 were all analytical reagent grade and supplied from
Shanghai Chemical Reagent Corporation. All water samples were taken
from West Lake, East Lake, Poyang Lake, Xixi Wetland, Yellow River,
and Yangtze River.
10
Catalytic Conversion of Biomass to Valuable Chemicals
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Commercial Beta zeolite
with a Si/Al ratio of 25 (Catalyst Plant of Nankai University) was
used as the supporter. The reagents used in the experiments were tin(II)
acetate (95%) (Alfa Aesar), 1.0 N LA (Alfa Aesar), HMF (97%) (Alfa
Aesar), levulinic acid (98%) (Alfa Aesar), cellulose (Alfa Aesar),
formic acid (99%) (J&K), acetic acid (99%) (J&K), 3-aminopropyltrimethoxysilane
(APTMS) (98%) (Wako), sucrose (Aladdin), acetol (97%) (Aladdin), phosphoric
acid (high-performance liquid chromatography, HPLC) (Sigma-Aldrich),
nitric acid [GR, Sinopharm Chemical Reagent Co., Ltd. (SCRC)], ethanol
(AR, SCRC),d -(+)-glucose (AR, SCRC), d -(+)-fructose
(AR, SCRC), lactose (AR, SCRC), starch (AR, SCRC), cellobiose (98%,
SCRC), sulfuric acid (AR, SCRC), and hydrochloric acid (AR, SCRC).
with a Si/Al ratio of 25 (Catalyst Plant of Nankai University) was
used as the supporter. The reagents used in the experiments were tin(II)
acetate (95%) (Alfa Aesar), 1.0 N LA (Alfa Aesar), HMF (97%) (Alfa
Aesar), levulinic acid (98%) (Alfa Aesar), cellulose (Alfa Aesar),
formic acid (99%) (J&K), acetic acid (99%) (J&K), 3-aminopropyltrimethoxysilane
(APTMS) (98%) (Wako), sucrose (Aladdin), acetol (97%) (Aladdin), phosphoric
acid (high-performance liquid chromatography, HPLC) (Sigma-Aldrich),
nitric acid [GR, Sinopharm Chemical Reagent Co., Ltd. (SCRC)], ethanol
(AR, SCRC),
(AR, SCRC), lactose (AR, SCRC), starch (AR, SCRC), cellobiose (98%,
SCRC), sulfuric acid (AR, SCRC), and hydrochloric acid (AR, SCRC).
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