Styrene, l -cysteine hydrochloride, 2-hydroxyethyl methacrylate (HEMA), N,N′-methylenebisacrylamide (BIS) and diethoxyacetophenone (DEAP) were purchased from J&K Scientific Ltd. (China). 1-Propanol, sodium dodecyl sulfate (SDS), 5,5′-dithiobis(2-nitrobenzoic acid) (DTNB), acetylthiocholine iodide (ATChI), Coomassie Brilliant Blue (G-250), dichlorvos, malathion, methidathion, acephate, glufosinate-ammonium, and Dipterex were purchased from Aladdin Co., Ltd. (China). Acrylic acid (AA) was purchased from Tokyo Chemical Industry Co., Ltd. (Japan). H2SO4 (95–98 wt%), phosphoric acid, HCl, NaOH, K2S2O8 and dimethyl sulfoxide (DMSO) were purchased from Beijing Chemical Plants (China). Tris(hydroxymethyl)aminomethane (Tris) and acetylcholinesterase (AChE) were obtained from Sigma (USA). Acrylamide (AM) was purchased from Amresco (USA). H2O2 (30 wt%) was purchased from Tianjin Fuyu Fine Chemical Co., Ltd. (China). 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) was supplied by Shanghai Medpep Co., Ltd. (China). The inhibitor in Styrene needed to be removed through an Al2O3 column before use, whereas the other materials were used as received. Deionized water was produced by the Puris-Evo CB Water System.
L cysteine hydrochloride
Manufactured by J&K Scientific
Sourced in China
L-cysteine hydrochloride is a chemical compound that functions as a source of the amino acid cysteine. It is a white crystalline powder that is soluble in water and ethanol. L-cysteine hydrochloride is commonly used in various scientific and industrial applications.
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2 protocols using l cysteine hydrochloride
1
Synthesis and Characterization of Biomimetic Hydrogels
2
Grape Berry Extraction and Analysis
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Mature Vitis vinifera ‘Summer Black’ berries were hand-harvested from a local organic vineyard in Honghe, Yunnan Province, China. Berries of each bunch were separated from stems using scissors. Berries without rot or physical damage were selected for further experiments. The average weight per grape berry was about 10 ± 0.5 g.
Mancozeb standard (purity 70.0%) was purchased from Dr. Ehrenstorfer GmbH Co., Ltd. (Augsburg, Germany). Primary secondary amine sorbent (PSA) was obtained from Agela Technologies Co., Ltd. (Tianjin, China). L-cysteine hydrochloride (purity ≥ 98%) was acquired from J&K Scientific Co., Ltd. (Shanghai, China). Ethylenediaminetetraacetic acid disodium salt (EDTA disodium salt, purity ≥ 99%) was obtained from Innochem Technology Co., Ltd. (Beijing, China). The ultrapure water was used in the experiment, and it was prepared using a Milli-Q water system (Millipore, Billerica, MA, USA). The rest of the solvents and reagents were of analytical grade.
Mancozeb standard (purity 70.0%) was purchased from Dr. Ehrenstorfer GmbH Co., Ltd. (Augsburg, Germany). Primary secondary amine sorbent (PSA) was obtained from Agela Technologies Co., Ltd. (Tianjin, China). L-cysteine hydrochloride (purity ≥ 98%) was acquired from J&K Scientific Co., Ltd. (Shanghai, China). Ethylenediaminetetraacetic acid disodium salt (EDTA disodium salt, purity ≥ 99%) was obtained from Innochem Technology Co., Ltd. (Beijing, China). The ultrapure water was used in the experiment, and it was prepared using a Milli-Q water system (Millipore, Billerica, MA, USA). The rest of the solvents and reagents were of analytical grade.
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