http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Yahan Cui (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Yahan Cui,Liyan Jiang,Huiyu Li,Di Meng,Yanhua Chen,Lan Ding,Yang Xu 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.96 No.-
The widespread addition of sulfa antibiotics in feeds has long been an environment safety issue. Therefore, it is quite meaningful to constantly propose better solutions for determining the sulfaantibiotics in the environment. Herein, molecularly imprinted electrospun nanofibre membrane (MIM)assisted stir bar sorptive extraction method for the determination sulfonamides (SAs) in feed wasdeveloped. In this study, molecularly imprinted polymers (MIPs) werefirstly prepared via emulsionpolymerization using sulfamonomethoxine as template. Then, the morphology-controllable MIM wasobtained with MIPs-doping electro-spinning solution using electro-spinning technique. Next, MIM arecoated on the magnetic stir bar by heat-sealing. Finally, MIM coated stir bar was used for selectiveenrichment of SAs. The obtained MIM exhibited excellent class selectivity towards SAs (the selectivityfactor β is 2.3–2.7). The MIM coated stir bar can be directly applied to extract SAs from feed samples. Under the optimum extraction conditions, the detection limit of the method could reach 1.5 3.4 ng/g. And satisfactory recoveries ranging from 80 6% to 89 7% were achieved under all three spiked levelsfor determination of four SAs infive different feed samples. The present work not only offers insights todevelop magnetic stir bar using imprinted membrane, but also provides a new method for SAs extraction.
-
Qiaoyan Li,Yahan Cui,Jiasheng Lin,Chun Zhao,Lan Ding 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.110 No.-
In this paper, the snowflake-like ZnO nanomaterials were prepared by combining zinc salt impregnationand high-temperature calcination with carbon microspheres as the sacrificial template. The effects ofethanol concentration in aqueous solution on the microstructure and sensing properties of ZnO nanomaterialswere investigated. The results showed that using 25 % ethanol-containing aqueous solution asimpregnation solution, snowflake-like ZnO nanomaterials (ZnO-25) showed excellent sensing performancefor NO2 at room temperature. It is mainly attributable to the rich channels and large specific surfacearea of the snowflake-like ZnO, which facilitates the rapid diffusion of the target gas. A large amountof chemisorbed oxygen can promote the surface reaction. In addition, the unremoved carbon during calcinationpromotes the electrical properties of ZnO. This strategy will provide a new sight on developing atype of sensitive NO2 gas sensing device working at room temperature.
-
Jiasheng Lin,Shuliang Yang,Yanjie Wang,Yahan Cui,Qiaoyan Li,Yanhua Chen,Lan Ding 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.114 No.-
A novel type of biomass carbonized polymer dots (CS-CPDs) with green fluorescence emission were synthesizedvia a one-step microwave-assisted method, using chitosan and maleic acid as the precursors. The fluorescence intensity of CS-CPDs was selectively enhanced (turn on) with increasing levofloxacin(LEV) concentration based on Aggregation Induced Emission Enhancement. The linear range of thismethod was 1–35 lmol/L, with the limit of detection of 0.20 lmol/L. Furthermore, we demonstrated thatthe fluorescence intensity of CS-CPDs/LEV was restored (turn on-off) due to the addition of copper (II),which could assemble a more stable Cu2+/LEV complex through coordination. For the first time, CSCPDswere utilized as a selective fluorescent ‘‘turn on-off” probe for the continuous detection of LEVand Cu2+. Excellent results were also obtained in environmental water samples analysis with recoveriesranging of 91.3–99.6% and 97.7–113.4%, respectively. Moreover, the prepared CS-CPDs exhibited excellentoptical stability and large Stokes shift (139 nm), which predicted broad application prospects inthe field of fluorescence sensing.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
