摘要
An auxiliary electrode was used to improve the electric field distribution between the nESI emitter and the MS sampler. The results show an improvement in the ratio of signal to noise for nanoliter electrospray using a home-made nanoliter electrospray tip, evaluated by spraying a 25 pg/μL reserpine solution. In addition, the average ratios of signal to noise of reserpine acquired within 30 min at different concentrations were compared with those obtained with an auxiliary electrode. The experimental results suggest that an auxiliary electrode could dramatically improve the ratio of signal to noise and provide confident trends for future application of auxiliary electrode in nanoliter electrospray.
An auxiliary electrode was used to improve the electric field distribution between the nESI emitter and the MS sampler. The results show an improvement in the ratio of signal to noise for nanoliter electrospray using a home-made nanoliter electrospray tip, evaluated by spraying a 25 pg/μL reserpine solution. In addition, the average ratios of signal to noise of reserpine acquired within 30 min at different concentrations were compared with those obtained with an auxiliary electrode. The experimental results suggest that an auxiliary electrode could dramatically improve the ratio of signal to noise and provide confident trends for future application of auxiliary electrode in nanoliter electrospray.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第4期627-629,共3页
Chemical Journal of Chinese Universities
基金
国家"九七三"项目 (批准号 :0 0 1CB5 10 2 0 2 )
"八六三"项目 (批准号 :2 0 0 1AA2 3 3 0 3 1)
国家自然科学基金 (批准号 :2 0 2 990 3 0 )资助
