Potassium chloride (kcl)

Titanium dioxide (TiO₂), iron oxide (Fe₂O₃), and magnesium carbonate basic pentahydrate (4MgCO₃·Mg(OH)₂·5H₂O) were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Potassium carbonate (K₂CO₃), sodium carbonate (Na₂CO₃), sodium chloride (NaCl), and potassium chloride (KCl) were purchased from Shanghai Lingfeng Chemical Reagent Co., Ltd., China. Ilmenite (FeTiO₃) was purchased from Jiangsu Taibai Group Co., Ltd. (Zhenjiang, China). The alumina crucibles (50 mL) used for calcination were purchased from Nanjing Wanqing Chemical Glass Instrument Co., Ltd. (Nanjing, China).

Bismuth nitrate pentahydrate (Bi(NO₃)₃·5H₂O) and absolute ethanol (C₂H₅OH) were provided by Sinopharm Chemical Reagent Co., Ltd., Shanghai, China. Selenium powder, sodium molybdate dihydrate (Na₂MoO₄·2H₂O), and sodium borohydride (NaBH₄) were purchased from Shanghai Adamas Reagent Co., Ltd., Shanghai, China. Potassium chloride (KCl) was obtained from Shanghai Lingfeng Chemical Reagent Co., Ltd., Shanghai, China. All the reagents were analytically pure grade and used as received without further purification. Milli-Q water was homemade and the resistivity was 18.2 MΩ cm.

All samples were collected between September and October 2021; the samples were transported at room temperature to the lab and stored at 4 °C before use. Three samples were taken from Linfen (Shanxi, China), including expJ from a chicken stable, expY from a sheep stable and expT from a wheat field. The sample expM was taken from a horse stable in Hangzhou (Zhejiang, China). ExpJ, expY and expM were materials of stable soil with animal waste and ExpT was the soil in the wheat field; the samples were collected with a grid soil-sampling method composed of four parallel transects [40 (link)] in closed bags with the aseptic technique.
Deoxynivalenol (≥99.9%), (Triple Chemical Corp. Ltd., Guelph, ON, Canada), Acetonitrile (>99.9%), (Anhui Tiandi High Purity Organic Solvent Co., Ltd., Anqing, China), high-performance liquid chromatography (HPLC), and a Waters e2695 and Waters 2998 photodiode array detector (Waters Shanghai Corp., Ltd., Shanghai, China) were used.
Culture medium: NaHCO₃ 0.06 g/L (Sinopharm Group Chemical Reagent Co., Ltd., Shanghai, China), KCl 0.01 g/L (Shanghai Lingfeng Chemical Reagent Co., Ltd., Shanghai, China), MgSO₄·7H₂O 0.12 g/L (Sinopharm Group Chemical Reagent Co., Ltd.), and CaCl₂ 0.29 g/L (Chengdu Kelon Chemical Co., Ltd., Chengdu, China); pH 7.8 ± 0.2.