Mb c16h18cln3s

Silver nitrate (AgNO₃, 98%), Magnesium chloride hydrates (MgCl₂, 6H₂O, 98%), MB (C₁₆H₁₈ClN₃S, 98%), and TB (C₁₅H₁₆ClN₃S, 98%) were purchased from Sigma-Aldrich,Germany. The leaves of purslane were collected from local fields in El Oued, Southeast of Algeria. Distilled water was used in all the experiments.

Titanium(IV) butoxide [Ti(C₄H₉O)₄, 97%], MB (C₁₆H₁₈C_lN₃S), MO (C₁₄H₁₄N₃NaO₃S), and various reagents were acquired from Sigma-Aldrich
(USA) and utilized without undergoing additional purification. In
every experiment, ultrapure water was utilized. κ-carrageenan
was obtained from Niche Centers in the Region (NICER) R&D Seaweed
Research and Development Center, Mindanao State University in Tawi–Tawi,
Sanga–Sanga, Bongao, Tawi–Tawi, Philippines.

MB (C₁₆H₁₈ClN₃S, 98%) and AZB (C₁₅H₁₆ClN₃S, 98%) were purchased from Sigma-Aldrich (St. Louis, MO, USA). AZA (C₁₄H₁₄ClN₃S, 80%) and AZC (C₁₃H₁₂ClN₃S, 50%) were purchased from West Asia Chemical Industry Co. Ltd. (Shandong, China). Methanol and acetonitrile (HPLC grade) were obtained from J. T. Baker Chemical Co. (Phillipsburg, NJ, USA). Polytetrafluoroethylene (PTFE, 0.22 µm) filters were supplied by Branch Billion Lung Experimental Equipment Co., Ltd. (Tianjin, China). Ammonium acetate (HPLC grade) was obtained from Honeywell (Morris Plains, NJ, USA). Formic acid (HPLC grade) was supplied by Aladdin Biochemical Technology Co., Ltd. (Shanghai, China). The ultrapure water was produced using Milli-Q Pure Water System (Millipore, Billerica, MA, USA). Alumina-neutral (ALN) solid-phase extraction (SPE) cartridges (3 mL/500 mg) were purchased from Sigma-Aldrich (St. Louis, MO, USA). Hydrophilic–lipophilic balanced (HLB) cartridges (6 mL/200 mg) were supplied by Waters (Taunton, MA, USA). The columns were Sunfire C₁₈ column (150 mm × 2.1 mm, 5 µm, Waters Technologies Ltd., Wexford, Ireland), Symmetry C₁₈ column (100 mm × 2.1 mm,3.5 µm, Waters Technologies Ltd., Wexford, Ireland), Hypersil ODS C₁₈ column (150 mm × 2.1 mm, 5 μm, Thermo Fisher Scientific Ltd., Bartlesville, OK, USA), and Capcell Pak C₁₈ column (100 mm × 2 mm, 5 µm, Shiseido Ltd., Tokyo, Japan).