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63 protocols using milli q ultrapure water purification system

1

Quantification of Ponatinib and Warfarin

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Ponatinib (purity > 97%) was provided by SANHOME Pharmaceutical Co., Ltd. (Nanjing, China), Fig. S1. Warfarin (purity > 98%), methanol, formic acid, ethyl acetate, ammonium formate were analytical grade and purchased from Sigma-Aldrich (St. Louis, MO, USA). Ultrapure water throughout the experiments was prepared by a Milli-Q ultrapure water purification system (Millipore, Bedford, MA, USA). Other chemicals and solvents were all of analytical grade.
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2

Characterization of Cedarwood Oil Using GC-MS

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CO was purchased from Thai-China Flavors and Fragrances Industry (Nonthaburi, Thailand). The obtained CO was analyzed using gas chromatography–mass spectrometry (GC-MS) and the method previously described [23 (link)]. Nile Red, polysorbate 20, Kolliphor EL, methanol, acetonitrile, GABA, diazepam, eugenol, and dimethyl sulfoxide (DMSO) were from Sigma-Aldrich (St. Louis, MO, USA). Captex 300 and Capmul MCM EP were kindly gifted from Abitec (Columbus, OH, USA). Ethanol and isopropanol were from VWR International (Radnor, PA, USA). Purified water was obtained from a Millipore Milli-Q Ultrapure Water purification system (Billeria, MA, USA). [3H]Muscimol (28.5 Ci/mmol) was from PerkinElmer (Waltham, MA, USA).
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3

QuEChERS Extraction and UHPLC-PDA Analysis of Pesticides

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All chemicals and solvents were of analytical quality grade. HPLC grade acetonitrile (MeCN) and methanol (MeOH) were purchased from LabScan (Dublin, Ireland). Insecticide standards, chlorpyrifos (98.3%), acrinathrin (99.7%), deltamethrin (99.9%) and ʎ-cyhalothrin (≥95.0%) were supplied by Sigma-Aldrich (St. Louis, MO, USA), Table 1. Buffered salts for QuEChERS extraction, including anhydrous magnesium sulphate (MgSO4), sodium hydroxide (NaOH), sodium chloride (NaCl), trisodium citrate dihydrate (C6H5Na3O7·2H2O) and disodium hydrogencitrate sesquihydrate (C6H8Na2O8), were also obtained from Sigma-Aldrich. dSPE clean-up tubes with primary secondary amine (PSA) and MgSO4 were obtained from Waters (Milford, MA, USA). Phosphoric acid (PhA, ≥85%) was from BDH (Poole, UK), while formic acid (FA, ≥99%) was obtained from Merck (Darmstadt, Germany). Ultrapure water (H2O) from a Milli-Q ultrapure water purification system (Millipore, Bedford, USA) was used for preparing the UHPLC mobile phase and other aqueous solutions. Filters of 13 mm with 0.22-µm PTFE membranes were used for filtration of the final extracts before UHPLC-PDA analysis.
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4

Mitomycin C Formulation and Analysis

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MMC reference standard (>99% purity; Lot 12362) was purchased from MedChem Express (Monmouth Junction, NJ, USA). MMC for Injection USP, 40 mg amber vial, lyophilized powder (Accord Healthcare, Inc., Lot PS00649, Exp. 02/2017), and 0.9% sodium chloride in 250 mL Excel® bags (Baxter Healthcare, Lot J5K206, Exp. 02/18) were both obtained from the Division of Pharmacy, MD Anderson Cancer Center (Houston, TX, USA). The chemical solvents and reagents used to prepare the mobile phase were high-performance liquid chromatography (HPLC) grade (or greater) and included acetonitrile, methanol, sodium dihydrogen phosphate, and sodium hydroxide. All HPLC reagents and solvents were purchased through Fisher Scientific (Waltham, MA, USA). Water was obtained from a Milli-Q ultrapure water purification system (Millipore, Bedford, MA, USA).
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5

Hydroxyapatite Materials Synthesis and Characterization

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All the chemicals were used as received from the manufacturer. For the preparation of the HA materials, calcium nitrate tetrahydrate (Ca(NO3)·4H2O, AR), triethyl phosphate (P(OC2H5)3, AR), diammonium hydrogen phosphate ((NH4)2HPO4, AR), Pluronic F127, polyvinyl alcohol (PVA), and 10× concentrated phosphate buffered saline (10× PBS) all came from Sigma-Aldrich, while anhydrous ethanol was from Merck (Darmstadt, Germany). Protein adsorption and cell culture studies required bovine serum albumin (BSA), vitronectin, BCATM Protein Assay Kit, hexamethyldisilane (HMDS), and sodium dodecyl sulphate (SDS, AR) all from Sigma-Aldrich; Minimum Essential Media (MEM), Glutamax, Non-Essential Amino Acids (NEAA), Antibiotic-Antimycotic solution (Anti-Anti), and TrypLE Express were purchased from Invitrogen; MTS reagent from Promega, and Fetal Bovine Serum (FBS) from SAFC Biosciences (Hampshire, England). The water used in all experiments was passed through a Millipore (Boston, MA, USA) Milli Q ultrapure water purification system and had a resistivity higher than 18.2 MΩcm.
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6

Huperzine A Formulation Development and Characterization

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Huperzine A (purity 99%) was purchased from Wanbangde Pharmaceutical Group Co., Ltd. (Zhejiang, China). Diphenhydramine hydrochloride (Lot No. 100066–200807) was purchased from the National Institutes for Food and Drug Control (Beijing, China). Propylene glycol was obtained from Tianjin Damao Chemical Reagent Factory (Tianjin, China). Polyoxyl 40 hydrogenated castor oil (Cremophor RH40®) was purchased from BASF, Germany. Castor oil was obtained from Sinopharm Group Chemical Reagent Co., Ltd. (Shanghai, China). Cycloheximide was purchased from Sigma Chemical Co. (St. Louis, MO, USA). Acetonitrile and methanol were HPLC grade and were supplied by the Oceanpak Alexative Chemical Co., Ltd. (Gothenburg, Sweden). Pure water was prepared by the Milli-Q Ultrapure water purification system (Millipore, Bedford, MA, USA). All other chemicals used in this study were analytical grade.
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7

Antibody Expression and Purification

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The plasmids pET21a and pET28a were obtained from Novagen (Madison, WI, USA). Strains Escherichia coli Shuffle T7, BL21 (DE3) were purchased from Takara Biotechnology (Dalian, China). Human β2-m was purchased from Crown Medical-Tech (Dalian) Co., Ltd. Sepharose CL-6B was purchased from GE Healthcare (Uppsala, Sweden). Lucifer Yellow CH probes (LY-CH) was purchased from Molecular Probes (Eugene, OR, USA). Human serum was obtained from Blood Bank of Dalian (Dalian, China). The 1,4-Butanediol diglycidyl ether was purchased from J&K Chemical (Beijing, China). The 2,2′,2-Nitrilotris (ethanol) was purchased from Aladdin Industrial Corporation. The 3,3′-diaminodipropylamine (DADPA) was purchased from Tokyo Chemical Industry (Tokyo, Japan). Double distilled water was obtained from a Milli-Q ultrapure water purification system (Millipore; Billerica, MA, USA).
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8

Medicinal Herb Extraction and Analysis

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I. helenium L. roots were collected from Kırşehir Province in Turkey (39°18′26″N, 34°18′25″E, Date: 31/07/2022), dried naturally at room temperature, finely ground, and passed through a 0.15‐mm stainless steel sieve. The moisture content of I. helenium was 9.72% (AOAC, 2000 ).
Acetonitrile, ethanol, methanol, and formic acid were purchased from Merck (Germany). Distilled water for preparing all the required solutions was from a Milli‐Q ultrapure water purification system (Millipore, France).
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9

Synthesis and Characterization of Aripiprazole and Derivatives

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Aripiprazole was obtained from Otsuka pharmaceutics (Tokyo, Japan), while N-hydroxymethyl-aripiprazole and aripiprazole lauroxil were synthesised as described below. Reagents and solvents for the synthetic work were obtained from Sigma-Aldrich (St. Louis, MO, USA) and used as received. Viscoleo, Ph. Eur Grade medium chain triglyceride, C8/C10 (MCT) was purchased from Delios V (Illertissen, Germany), lecithin (E80) for the intravenous emulsion was obtained from Lipoid AG (Ludwigshafen, Germany) and glycerol from Sigma Aldrich (St. Louis, MO, USA). Hypergrade acetonitrile from Merck (Darmstadt, Germany) was used for the HPLC–MS/MS analysis, ethanol was from De Danske Spritfabrikker (Aalborg, Denmark) and deuterated aripiprazole used as the internal standard in the bioanalysis was purchased from Toronto Research Chemicals Inc. (Toronto, ON, Canada). Purified water was obtained from a Millipore Milli-Q Ultrapure Water purification system (Billerica, MA, USA). All other chemicals were of analytical grade or higher.
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10

Analytical Grade Reagents Protocol

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All reagents used were of analytical grade and used without further purification (Aladdin Industrial Corporation, Shanghai, China). In all experiments, the deionized water was obtained from Millipore Milli-Q ultrapure water purification system with a resistivity larger than 18.2 MΩ.
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