The paper reports the method for determination of Tartaric acid and Maleic acid by high performance liquid chromatography. Tartaric acid and Maleic acid were separated on a Shim-pack CLC ODS (150 mm×6. 0 mm id, 5...The paper reports the method for determination of Tartaric acid and Maleic acid by high performance liquid chromatography. Tartaric acid and Maleic acid were separated on a Shim-pack CLC ODS (150 mm×6. 0 mm id, 5 μm) column with 0. 01 mol/L NaH2PO4- H3PO4(pH= 2. 0) as mobile phase, and the flow rate was 0. 7 mL/min. The components detected at UV at 220 nm. The quantitative results were obtained by external standard on a method.展开更多
The ordered two dimensional arrays of uniform copolymer microspheres had been fabricated on a substrate by the liquid capillary meniscus attraction force method. Thin aluminium film was deposited on the latex monolaye...The ordered two dimensional arrays of uniform copolymer microspheres had been fabricated on a substrate by the liquid capillary meniscus attraction force method. Thin aluminium film was deposited on the latex monolayer through vacuum evaporation. After ultrasonic etching and dissolving of polymer spheres a surface with features remained. Different patterings of net, islands and separate spots can be obtained by controlling the ultrasonic treatment time. The interaction among the metal, microspheres and the substrate as well as its effect on the micropatternings has been discussed.展开更多
文摘The paper reports the method for determination of Tartaric acid and Maleic acid by high performance liquid chromatography. Tartaric acid and Maleic acid were separated on a Shim-pack CLC ODS (150 mm×6. 0 mm id, 5 μm) column with 0. 01 mol/L NaH2PO4- H3PO4(pH= 2. 0) as mobile phase, and the flow rate was 0. 7 mL/min. The components detected at UV at 220 nm. The quantitative results were obtained by external standard on a method.
文摘The ordered two dimensional arrays of uniform copolymer microspheres had been fabricated on a substrate by the liquid capillary meniscus attraction force method. Thin aluminium film was deposited on the latex monolayer through vacuum evaporation. After ultrasonic etching and dissolving of polymer spheres a surface with features remained. Different patterings of net, islands and separate spots can be obtained by controlling the ultrasonic treatment time. The interaction among the metal, microspheres and the substrate as well as its effect on the micropatternings has been discussed.