Comparative observation of the effectiveness and safety of remimazolam besylate versus dexmedetomidine in gastrointestinal surgery in obese patients.

Background: Surgery for obese patients carries a higher risk of anesthesia complications compared with surgery for nonobese patients. Thus, a safe and effective anesthesia strategy is necessary to improve the medical experience of such patients and ensure their safety.

Aim: To compared the effectiveness and safety of remimazolam besylate dexmedetomidine (DEX) in gastrointestinal surgery in obese patients.

[Determination of Fe and Ba in BaFe12O19 samples by binary ratio and X-ray fluorescence spectrometry].

A new quantitative analysis method was established for the determination of Fe and Ba in BaFe12O9 samples by binary ratio and X-ray fluorescence spectrometry. The calibration curve was established by a self-made pure Fe powder(AR) and pure BaCO3 powder(AR) standard sample which was prepared by powder pellet method. The standard sample has the content of Fe 75% and the content of Ba is 17.