Cetyltrimethylammonium bromide ctab

Prochloraz technical (Pro, 98%) was acquired from Nanjing Norris Pharm Technology Co., Ltd. (Nanjing, China). Styrene, ammonia, ethanol, methanol and chromatographic grade methanol were acquired from Shanghai Aladdin Bio-Chem Technology Co., Ltd. (Shanghai, China). Polyvinylpyrrolidone (K-30), 2,2′-azobis(2-methylpropionamidine) dihydrochloride (V-50), 3-aminopropyltriethoxysilane (APTES, 98%) and tris(hydroxymethyl)aminomethane (Tris) were obtained from Shanghai Yuanye Bio-Technology Co., Ltd. (Shanghai, China). Cetyltrimethylammonium bromide (CTAB) was supplied by Shanghai Macklin Biochemical Co., Ltd. (Shanghai, China). Tetraethyl orthosilicate (TEOS, 99%), Copper (II) chloride dihydrate (CuCl₂∙2H₂O) and TA were purchased from Beijing Ouhe Technology Co., Ltd. (Beijing, China).

TEMPO-oxidized cellulose nanofibers (TOCNFs, 0.2 wt%) dispersion was purchased from Tianjin woodelfbio Co., Ltd. MAX Ti₃AlC₂ (99%, 400 mesh) was purchased from Jilin 11 Technology Co., Ltd. Lithium fluoride (LiF, 99%), 2-methylimidazole (C₄H₆N₂, 98.0%), cetyltrimethylammonium bromide (CTAB, 99%), and N,N-dimethylformamide (DMF, AR) were purchased from Shanghai Macklin Biochemical Technology Co., Ltd. Cobaltous nitrate hexahydrate (AR) and zinc nitrate hexahydrate (AR) were obtained from Guangzhou Huada Chemical Reagent Co., Ltd. Methanol (AR) and concentrated hydrochloric acid (HCl) were supplied by Beijing Modern Oriental Fine Chemistry Co., Ltd. The above chemicals were used without further purification. Filter membranes (cellulose, 0.45 μm pore size) were supplied by Tianjin Jinteng Experiment Equipment Co., Ltd.

N-Hydroxysuccinimide-functionalized magnetic beads (NHS-MBs) were bought from Beaver Bioscience Inc. (Suzhou, China). DON monoclonal antibodies (mAb) were purchased from Chuangpu Biotechnology Co., Ltd. (Wuxi, China). HRP-linked DON antigen was obtained from Jiesheng Jiekang Biotechnology Co., Ltd. (Wuxi, China). TMB two-component substrate solution and HRP were bought from Beijing Solarbio Life Science Co., Ltd. (Beijing, China) Chloroauric acid (HAuCl₄·4H₂O), silver nitrate (AgNO₃), sodium borohydride (NaBH₄), nitric acid (HNO₃), and hydrochloric acid (HCl) were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Cetyltrimethylammonium bromide (CTAB) and cetyltrimethylammonium chloride (CTAC) were bought from Macklin Biochemical Technology Co., Ltd. (Shanghai, China). Both 8-hydroxyquinoline and citrate were obtained from Aladdin Chemistry Reagent Co., Ltd. (Shanghai, China). Deoxynivalenol (DON), aflatoxin B₁ (AFB₁), aflatoxin M₁ (AFM₁), zearalenone (ZEN), and ochratoxin A (OTA) were supplied by the Academy of National Food and Strategic Reserves Administration (Beijing, China). Unless otherwise stated, all chemicals were purchased from commercial suppliers and used without further purification.