We purchased 186 pesticide reference material standards with purities greater than 95% from Sigma-Aldrich (Saint Louis, MO, USA) and Dr. Ehrenstorfer GmbH (Augsburg, Germany). MS-grade solvents, such as acetonitrile and ethyl acetate, were purchased from Merck Companies (Darmstadt, Germany); analytical grade acetic acid was obtained from Chengdu Kelong Chemical Reagent Company (Sichuan, China); analytical grade salts, such as sodium chloride (NaCl) and magnesium sulfate (MgSO4), were from Shanghai GuoYao Chemical Reagents (Shanghai, China). Graphitized Carbon Black (GCB, 40 μm), MWCNTs, and Primary Secondary Amine (PSA, 40 μm) were purchased from ANPEL Laboratory Technologies Inc. (Shanghai, China). EMR-Lipid was obtained from Agilent Technologies, Inc. (Santa Clara, CA, USA). Ultra-pure water was obtained using a MilliQ UF-Plus system (Millipore, Darmstadt, Germany) with a resistivity of at least 18.2 MΩ.cm at 25 °C.
Milliq uf plus system
Manufactured by Merck Group
Sourced in Germany, United States
The MilliQ UF-Plus system is a water purification system designed to produce high-purity water for various laboratory applications. It utilizes a combination of filtration and deionization technologies to remove impurities and deliver water that meets stringent quality standards.
Automatically generated - may contain errors
Lab products found in correlation
Bovine serum albumin (bsa), by Merck Group (2 mentions)
Ethanol, by Merck Group (2 mentions)
Methanol, by Merck Group (2 mentions)
Acetonitrile, by Merck Group (2 mentions)
Isopropanol, by Merck Group (2 mentions)
Emr lipid, by Agilent Technologies (1 mentions)
Anhydrous sodium acetate, by Merck Group (1 mentions)
Sodium dihydrogen phosphate, by Merck Group (1 mentions)
Trisodium citrate dihydrate, by Merck Group (1 mentions)
Nh2oh hcl, by Merck Group (1 mentions)
3 aminopropyltrimethoxysilane, by Merck Group (1 mentions)
Sodium chloride (nacl), by Merck Group (1 mentions)
Sodium phosphate dibasic, by Merck Group (1 mentions)
Agno3, by Merck Group (1 mentions)
Inova 600 nmr spectrometer, by Agilent Technologies (1 mentions)
Flash ea 1112 elemental analyzer, by Thermo Fisher Scientific (1 mentions)
Azathioprine, by Merck Group (1 mentions)
Propranolol hydrochloride, by Merck Group (1 mentions)
Sulfamethoxazole, by Merck Group (1 mentions)
Magnesium stearate, by Thermo Fisher Scientific (1 mentions)
10 protocols using milliq uf plus system
1
Pesticide Standards Characterization and Extraction
2
Optimized Colorimetric Assay Reagents
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NH2OH·HCl (# H9876, ≥99%), AgNO3 (# 209139, ≥99%), oPD (# P9029, ≥98%), DAP (# 661376, 90%), highly stabilized salt-free HRP (# P2088, RZ 2.6–3.4, 200–300 pyrogallol units/mg), NaCl (# S9625, ≥99%), bovine serum albumin (BSA, # A7030, ≥98%), trisodium citrate dihydrate (# S4641, ≥99%), anhydrous sodium acetate (# 1.06268, ≥99%), sodium dihydrogen phosphate (# 71496, ≥99%), sodium phosphate dibasic (# 1.06586, ≥99%), and (3-aminopropyl)-trimethoxysilane (# 281778, 97%) were purchased from Sigma-Aldrich. To minimize the oxidation of oPD, freshly purchased powder was stored at −20 °C instead of recommended +4 °C. Chemically pure NaOH (>99%) for AgNP synthesis and extra-pure grade H2SO4 were purchased from Chimmed, Russia. Chemically pure glacial acetic acid, extra-pure HCl (35–38 weight %), boric acid, and citric acid hydrate were purchased from Component-Reaktiv, Russia. Biotechnology-grade glycine (# Am-O167, >99%) was purchased from Helicon, Russia. Sodium tetraborate decahydrate (# 31457, 99.5%) was purchased from Fluka. All solutions were prepared using deionized water (18.2 MΩ·cm) from the MilliQ UF Plus system (Millipore, Molsheim, France).
3
Organometallic Complex Synthesis and Characterization
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All manipulations for the preparation and handling of the organometallic complexes were carried out under air. All the solvents were used as received. Other commercially available chemicals, such as Co(BF4)2·6H2O, 1,2-ethanediamine,6-methylpicolinaldehyde, N-benzylethane-1,2-diamine, were purchased from local suppliers and used as received. Water was deionized with the Millipore Milli-Q UF Plus system. Glass carbon discs (3 mm), AgCl/Ag electrodes and platinum wire were purchased from CHI for electrochemical studies. Arrows are employed in the CV diagram to denote the initial scanning direction.
The NMR spectrum was acquired by employing the Varian INOVA 600 NMR spectrometer, an instrument manufactured by the renowned American company Varian. Mass spectra were recorded with HP 1100 HPL/ESI-DAD-MS and Waters/Micromass LC/Q-TOF-MS instruments. Elemental analyses were performed with a Thermoquest-Flash EA 1112 elemental analyzer. FTIR in situ was monitored by React IR 15 instrument equipped with a MCT detector and a Dsub AgXSiComp in situ probe.
The NMR spectrum was acquired by employing the Varian INOVA 600 NMR spectrometer, an instrument manufactured by the renowned American company Varian. Mass spectra were recorded with HP 1100 HPL/ESI-DAD-MS and Waters/Micromass LC/Q-TOF-MS instruments. Elemental analyses were performed with a Thermoquest-Flash EA 1112 elemental analyzer. FTIR in situ was monitored by React IR 15 instrument equipped with a MCT detector and a Dsub AgXSiComp in situ probe.
4
Biomimetic Column Calibration Standards
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Standards, certified reference material, for calibration and validation of biomimetic columns were: Acetylsalicylic acid, caffeine, cefalexin, chloramphenicol, cimetidine, codeine hydrochloride dihydrate, furosemide, ibuprofen, mesalazine, metronidazole, nifedipine, paracetamol, propranolol hydrochloride, salicylic acid, sulfadiazine, sulfamethoxazole, thiamine hydrochloride and warfarin purchased from Sigma-Aldrich (St. Louis, MO, USA). Azathioprine; folic acid; 6-mercaptopurine and 6-thioguanine, United States Pharmacopeia reference standard and 6-methylthioguanine (≥95%) have also been obtained from Sigma-Aldrich. Acetonitrile, ethanol, iso-propanol, methanol, formic acid, all HPLC grade; sodium hydroxide; ACS reagent (97.0%) pellets; sodium nitrate (≥99.0); phosphate-buffered saline tablets (0.01 M, 0.0027 M potassium chloride and 0.137 M sodium chloride, pH 7.4 at 25 °C); potassium phosphate monobasic and potassium phosphate dibasic (HPLC grade) were provided by Sigma-Aldrich. Ultra-pure water was obtained using a MilliQ UF-Plus system (Millipore, Darmstadt, Germany); resistivity MΩcm−1 >18 at 25 °C and TOC <5 ppb. The excipients included hydroxypropyl methylcellulose Methocel K100M Premium CR (Colorcon, Harleysville, PA, USA), magnesium stearate (Acros Organics, Princeton, NJ, USA), lactose monohydrate, stearic acid, wheat, rice and corn starch (Kemig, Zagreb, Croatia).
5
Fabrication of ZnO-BSA Biosensor
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Glutaraldehyde, bovine serum albumin (BSA), phosphate-buffered saline (PBS), and ZnO nanoparticles (20 nm in diameter) were purchased from Sigma Chemical (St Louis, MO, USA). The ULBP2 antigen and antibody were purchased from R&D Systems (Taiwan). Epoxy (EPO-TEK® 509FM-1) was purchased from Epoxy Technology (Billerica, MA, USA). Graphite and silver pastes were purchased from Advanced Conductive Materials (Atascadero, CA, USA). Polyethylene terephthalate (PET) thin film was purchased from 3M. The Millipore Milli-Q UFplus System (Bedford, MA, USA) was used to generate deionized water (resistivity ≥ 18 MΩcm), which was used for all preparations. All chemicals and reagents are commercially available and were used with no further purification.
6
Fabrication of electrochemical biosensor
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Commercial chemicals and reagents without further purification were used in this study. Phosphate-buffered saline (PBS), bovine serum albumin (BSA), glutaraldehyde and 20 nm zinc oxide nanoparticle were from Sigma Chemical (St Louis, MO, USA); DCP antigen and antibody were from AllBio Science Inc. (Taiching, Taiwan); Graphite and silver pastes were purchased from Advanced Conductive Materials (Atascadero, CA, USA); Epoxy (EPO-TEK® 509FM-1) from Epoxy Technology (Billerica, MA, USA), and polyethylene terephthalate (PET) sheet from 3M (Taipei, Taiwan). Deionized water (resistivity ≥ 18 MΩ·cm) used for all preparations, was purified by a Milli-Q UFplus System (Millipore, Bedford, MA, USA).
7
Anaerobic Experimental Procedures
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Reagents were purchased from commercial sources as described in SI Appendix and used without further purification. Ultra-high–purity gases purchased from Praxair were used for all anaerobic manipulations. Distilled water was deionized to a resistivity of 18.2 M-ohm cm using a Millipore Milli-Q UF Plus system.
8
Quantitative LCMS Analysis of Novel Compounds
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WES-1 and WES-2 were synthesized as reported previously [15 (link)]. Compound AW-9a was prepared through the reaction of (E)-3-(3-(dimethylamino)acryloyl)-2H-chromen-2-one [21 (link)] with aniline. The purity of the prepared compounds was greater than 96%, as determined by HPLC analysis. Coumarin (IS) was purchased from Sigma-Aldrich (St. Louis, MO, USA) with claimed purity of >99%. Formic acid (LC/MS grade), methanol, and acetonitrile (HPLC grade) were obtained from Fisher Scientific (Pittsburg, PA, USA). Ultra-pure water was obtained from MilliQ UF-Plus system (Millipore, Bedford, MA, USA); resistivity was maintained at 25 °C with TOC <5 ppb and >18 MΩ·cm−1. Blank human plasma samples were purchased from Sigma-Aldrich (St. Louis, MO, USA).
9
Synthesis and Characterization of Functionalized Aryldiazonium Salts
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Nickel(II) acetylacetonate [Ni(C5H7O2)2], anhydrous tert‐butanol [(CH3)3COH], potassium hydroxide (KOH), 4‐nitrobenzenediazonium tetrafluoroborate (C6H4N3O2BF4), 3,5‐dichlorophenyldiazonium tetrafluoroborate (C6H3Cl2N2BF4), 4‐methoxybenzenediazonium tetrafluoroborate (CH3OC6H4N2BF4), 2,3,4,5,6‐pentafluoroaniline (C6F5NH2), nitrosyl tetrafluoroborate (NOBF4), anhydrous acetone (CH3COCH3), anhydrous dichloromethane (CH2Cl2), and acetonitrile‐d3(CD3CN) were purchased from Sigma‐Aldrich. 4‐carboxylbenzenediazonium tetrafluoroborate (CO2HC6H4N2BF4) was purchased from Chemtronica AB (Sweden). The water used for electrolyte solutions was deionized using a Millipore Milli‐Q UF Plus system (15–18 MΩ‐cm resistivity).
10
Residual Solvents Analysis: Comprehensive Characterization
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USP Stock Standard Residual Solvents Class 2—Mix A, USP Stock Standard Residual Solvents Class 2—Mix B, and Residual Solvents Class 3 Mix A were obtained from United States Pharmacopeia (Rockville, MA, USA). Organic solvents acetone, acetonitrile, 1-butanol, ethanol, isobutanol, isopropanol, methanol, 1-propanol, and tert-butanol, all HPLC grade, were obtained from Merck (Darmstadt, Germany). Sodium acetate trihydrate for analysis (EMSURE® ACS, ISO, Reag. Ph Eur), glacial acetic acid (100% Suprapur®), dimethylformamide (DMF) (for HPLC, purity ≥ 99.9%), and 2-chloroethanol D4 (98%) were purchased from Sigma-Aldrich (St. Louis, MO, USA). Analytical standards of ethylene oxide (50 mg/mL in methanol) and 2-chloroethanol (2 mg/mL in methanol) were available in ready-to-use solutions from Sigma-Aldrich (St. Louis, MO, USA). Gluten Detection Kit (Gluten-Tec competitive ELISA) was obtained from EuroProxima B.V. (Arnhem, the Netherlands). Ultra-pure water was obtained using a MilliQ UF-Plus system (resistivity MΩcm−1 > 18 at 25 °C and TOC < 5 ppb) from Millipore (Darmstadt, Germany).
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