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Acetonitrile of hplc grade

Manufactured by Merck Group
Sourced in Germany, United States, Malaysia

Acetonitrile is a high-performance liquid chromatography (HPLC) grade solvent that is commonly used as a mobile phase component in HPLC applications. It is a clear, colorless, and volatile liquid with a characteristic odor. Acetonitrile is widely used in analytical laboratories due to its suitable properties for HPLC, such as its compatibility with a variety of stationary phases and its ability to provide efficient separation of analytes.

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48 protocols using acetonitrile of hplc grade

1

HPLC Analysis of L-citrulline and L-arginine

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L-citrulline (purity ≥ 99%) and L-arginine (purity ≥ 98%) standard were purchased from Sigma-Aldrich (St. Louis, MO, USA). Methanol and acetonitrile of HPLC grade were purchased from Merck (Germany). Phosphoric acid (purity ≥ 85%) was purchased from Sigma-Aldrich (St. Louis, MO, USA). Deionized water was prepared using ultrapure water purifier system (Elgastat, Bucks, UK).
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2

Synthesis and Characterization of CML and CEL Compounds

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Nε-carboxymethyl-lysine (CML), Nε-carboxyethyl-lysine (CEL), Nε-carboxymethyl-lysine-d4 (CML-d4), and Nε-carboxyethyl-lysine-d4 (CEL-d4) were bought from Toronto Research Chemicals Inc. (Toronto, Canada). Acetonitrile of HPLC grade was purchased from Merck (Darmstadt, Germany). All the other chemicals and reagents used in this study were of analytical grade.
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3

Quantitative Amino Acid Analysis

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Solutions of 17 amino acids in five concentrations (0.01-1 nmol) and OPA reagent (O-phthalaldehyde and 3-mercaptopropionic acid) in 0.4 M borate buffer at concentration of 10 mg/mL were obtained from Agilent, USA. Methanol and acetonitrile of HPLC grade were purchased from Merck (Petaling Jaya, Selangor, Malaysia). Deionized water for HPLC was prepared using ultrapure water purifier system (Elgastat, Bucks, UK).
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4

Investigating Anti-Inflammatory Effects of Cordyceps militaris

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Cordyceps militaris was provided by Hong Hao Biotechnology Co., Ltd., (Jiangmen, China). Cordycepin was purchased from Refensi Biotechnology Co., Ltd., (Chengdu, China). Colchicine was obtained from Sigma Chemical Co., (St. Louis, MO, United States). IL-1β, IL-6, IL-10, TNF-α, and CAS-1ELISA kits were purchased from Jiang Lai Biotechnology Co., Ltd., (Shanghai, China). Decalcification solution, hematoxylin and eosin were purchased from Sevier Biotechnology Co., Ltd., (Wuhan, China). TRIzol reagent was purchased from Thermo Fisher Scientific (Carlsbad, CA, United States). circRNAs and miRNAs, miRcute Plus miRNA First-Strand cDNA Kit and miRcute Plus miRNA qPCR Kit were provided by Tiangen Biochemical Technology Co., Ltd., (Beijing, China). The mRNA, GoScriptTM Reverse Transcription Mix Kit, and GoTaq® qPCR Master Mix Kit were provided by American Promega Biotechnology Co., Ltd., Acetonitrile of HPLC grade was obtained from Merck (Darmstadt, Hesse, Germany). Pure water for HPLC was obtained from an ultrapure water system machine (PureLab, United States).
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5

Triazole Pesticide Analysis in Popping Candies

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All chemicals used were at least of analytical grade. Triazole standards including myclobutanil (MCBT), triadimefon (TDF), tebuconazole (TBZ), and hexaconazole (HCZ), were purchased from Dr Ehren-storfer GmbH (Germany). The stock standard solution of each triazole (1000 mg L−1) were prepared by dissolving an appropriate amount in Methanol and stored in a refrigerator at 4 °C. Methanol and acetonitrile of HPLC-grade were obtained from Merck (Darmstadt, Germany). 1-Dodecanol (Sigma-Aldrich, Germany) and tributyldodecylphosphonium bromide (P44412Br) (Sigma-Aldrich, Switzerland) were used. Popping candies were obtained from local markets in Maha Sarakham, (Thailand). Type I deionized water (18.2 MΩ cm) used throughout this work was prepared using a RiOs simplicity 185 water purification system (Millipore, USA). Before subjecting to the HPLC system, all reagents were filtered through a 0.45 μm membrane filter.
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6

Comprehensive Optimization of HPLC Protocols

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Ultrapure water was prepared using a Milli-Q purifying system (Millipore, Bedford, MA, USA). Methanol and acetonitrile of HPLC grade were purchased from Merck (Damstadt, Germany). Standard compounds of histidine (1), arginine (3), cysteine (4), asparagine (5), serine (6), lysine (7), glutamine (8), proline (9), cytidine (10), hypoxanthine (11), deoxycytidine (12), uridine (13), tyrosine (14), guanine (15), guanosine(16), inosine(17), deoxyguanosine (19), isoleucine (20), leucine (21), thymidine (23), phenylalanine (24), tryptophan (27), epicatechin (33), rutin (34), hyperoside (35), and quercitrin (37) were purchased from Shanghai Yuanye Biotechnology (Shanghai, China); glutamic acid (2), gallic acid (22) and apigenin (43) were obtained from Chinese National Institute of Control of Pharmaceutical and Biological Products (Beijing, China); fumaric acid (18), gallocatechin (25), epigallocatechin (28), cryptochlorogenic acid (31), kaempferol 3-O-rutinoside (39) and amentoflavone (42) were acquired from Chengdu Chroma Biotechnology (Chengdu, China); neochlorogenic acid (26), chlorogenic acid (29), catechin (30), caffeic acid (32), isoquercitrin (36), avicularin (38), trifolin (40), and astragalin (41) were bought from Baoji Chenguang Biotechnology Co., LTD. (Baoji, China) with the purity greater than 98% and their structures were presented in Figure S4.
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7

Extraction and purification protocol

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RH was received from Glochem (India). PVP K30 and HPβCD were purchased from Sigma Aldrich (Germany). Ethanol and acetonitrile of HPLC grade were obtained from Merck (Germany) and the liquid nitrogen were received from Sabalan (Iran).
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8

Bovine Milk Protein Quantitation

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BSA was used
as the standard for protein quantitation and purchased from Sigma-Aldrich
(St. Louis, MO). Sodium bicarbonate (NaHCO3), dithiotheritol
(DTT), iodoacetamide (IAA), ammonium hydroxide, sodium cyanoborohydride
(NaBH3CN), formaldehyde (CH2O), and formaldehyde-isotope
(13CD2O) were from Sigma-Aldrich (St. Louis,
MO) as well. Sequencing grade modified trypsin was from Worthington
Biochemical Corporation (Freehold, NJ). Formic acid and acetonitrile
of HPLC grade were obtained from Merck (Darmstadt, Germany). Ultrapure
water was obtained by a Milli-Q Gradient water purification system
(Millipore, Bedford, MA). Raw bovine milk samples were provided by
Shiyun Lai in Beingmate Research Institute.
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9

Comprehensive Analysis of Phytochemical Compounds

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Methanol and acetonitrile of HPLC grade were purchased from Merck (Damstadt, Germany); ultrapure water was prepared using a Milli-Q purifying system (Millipore, Bedford, MA, USA); standard compounds of chlorogenic acid, cryptochlorogenic acid, neochlorogenic acid, isochlorogenic acid A, isochlorogenic acid B, ferulic acid, caffeic acid, loganin, proline, alanine, serine, leucine, lysine, histidine, arginine, cytidine, uridine, adenosine, and phenylalanine were obtained from Shanghai Yuanye Biotechnology Co. Ltd (Shanghai, China); 1,3‐O‐dicaffeoylquinic acid, isochlorogenic acid C, protocatechuic acid were purchased from Chengdu Prefa Technology Development Co. Ltd (Sichuan, China); quinic acid, rutin, hyperoside, astragalin, isoquercitrin were acquired by the Control of Pharmaceutical and Biological Products (Beijing, China); diosmetin, apigenin, kaempferol, kaempferol‐3‐O-rutinoside, sweroside were purchased from Chengdu Chroma Biotechnology Co. Ltd (Sichuan, China); 4,5‐O-dicaffeoylquinic acid methyl ester, luteolin, luteoloside, rhoifolin, lonicerin, secologanic acid, loganin acid, morroniside were provided by Liangwei Chemical Reagent Co. Ltd (Nanjing, China); secoxyloganin were taken from Nanjing Jingzhu Biotechnology Co. Ltd (Nanjing, China). The purity of all standard compounds was more than 98%.
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10

Analytical Method Development for Tripll 2

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ATR, MET, and GLM were gift samples obtained from Aurobindo Pharma (Hyderabad, India). Purified water was obtained from a Millipore Direct-Q 3 U.V. Acetonitrile of HPLC grade, o-phosphoric acid, and sodium dihydrogen phosphate were of A.R. grade and were purchased from Merck, Pvt. Ltd (Mumbai, India). Tripll 2 tablet dosage form with concentrations of ATR-10 mg, MET-500 mg, and GLM-2 mg was purchased from the market.
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