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Objective To explore nursing scheduling mode in ICU. Methods Grouping was carried out on the basis of nursing decentralized management and the two-way selection between group heads and group members. The research target was the 60 nurses in ICU. Degrees of the nurses' job satisfaction and changes of nursing quality before and after grouping were compared and analyzed. Results The general degree of the nurses' satisfaction towards scheduling was (3.75±0.70) points before grouping while (4.30±0.50) points six months after grouping. The difference had the statistical significance (t=6.5645, P < 0.01);the scores of nursing quality check on classification management, ward management, nursing security, emergency management and hospital infection management were (91.97±1.47), (93.07± 1.66), (93.43 ± 1.50), (94.03 ± 1.10), (94.07 ± 1.39) points respectively before grouping and (95.08 ± 1.63), (95.77±1.55), (96.07±1.41), (97.37±1.56) and (97.07±1.48) points respectively six months after grouping. The differences had the statistical significance (t=6.5192-10.9934, P<0.01). Conclusions The two-way selection among nurses and decentralized management grouping can improve the degree of nurses′job satisfaction and nursing quality.
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Objective To develop an efficient method to isolate and purify the main components isoaloeresin D and aloin from Aloe vera for its industrial production. Methods High-speed counter-current chromatography was used to isolate isoaloeresin D and aloin in a one-step separation from dried crude extract ofA. vera. The biphasic solvent system the lipophilic phase was selected as the mobile phase and the apparatus was rotated at 840 r/min. The effluent was detected at 254 nm. Results Isoaloeresin D (53.1 mg) and aloin (106.9 mg) were separated from the crude extract (384.7 mg) with the purities of 98.6% and 99.5%, respectively. Conclusion HSCCC is a powerful technique for isolation and separation of chemical composition from aloe.
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<p><b>OBJECTIVE</b>To isolate and purify gallic acid and brevifolincarboxylic acid simultaneously by high-speed counter-current chromatography (HSCCC) from a crude extract of Polygonum capitatum.</p><p><b>METHOD</b>The biphasic solvent system composed of ethyl acetate-n-butanol-0.44% acetic acid (3:1:5) was used at a flow rate of 2.0 mL x min(-1), while the aqueous phase was selected as the mobile phase and the apparatus was rotated at 860 r x min(-1). The effluent was detected at 272 nm.</p><p><b>RESULT</b>51.5 mg of gallic acid and 5.9 mg of brevifolincarboxylic acid were separated from 1.07 g of the crude extract with the purities of 99.7% and 97.5%, respectively, while brevifolincarboxylic acid was obtained firstly from the genus Polygonum. The structures of the compounds were identified by ultraviolet spectrometry (UV), infra-red spectrometry (IR), liquid chromatography/mass spectrometry (LC/MS), time-of-flight mass spectrometry( TOF-MS), 1H-nuclear magnetic resonance (NMR) and 13C-NMR.</p><p><b>CONCLUSION</b>This method is feasible and rapid for isolation and purification of gallice acid and brevifolincarboxylil acid.</p>