Objective To study the determination method of total flavonoids in Gansu Astragali Radix and Hedysarum Polybotrys. Methods Calycosin glycosides etc. was selected as reference substances, comparison on the difference of absorption curves was done by ultraviolet spectroscopy and colorimetric method (NaNO2-Al(NO3)3-NaOH, AlCl3, Mg(Ac)2, NaOH, phosphomolybdic acid, HCl-Mg power). Results With colorimetric method, the maximum absorption wavelength of referrence and the test was inconsistent. The absorption peak shape was also different. With UV method, Calycosin glycosides in band Ⅱ (260 nm) showed a shoulder absorption. Astragali Radix and Hedysarum Polybotrys also showed characteristic shoulder absorptions in band Ⅱ with absorption wavelength at 263 nm and 265 nm. So the sample absorption wavelength is basically the same as that of the control sample. Conclusion Colorimetries usually used for determination of total flavonoids are not suitable for the comparison determination of Gansu Astragali Radix and Hedysarum Polybotrys. It is suitable for determining the contents of total flavonoids in samples by UV spectrophotometry at the band Ⅱ, which is the characteristic absorption band of isoflavone compound.

Objective To analyze the current status and quality of existing obstetrics and gynecology enhanced recovery after surgery(ERAS)guidelines/consensus,understand the evidence-based practices in this field,and provide a basis for clinical decision-making.Methods A systematic search of PubMed,CNKI,and other databases,as well as NGC,SIGN,and websites of anesthesia societies domestically and internationally was conducted to obtain relevant guidelines and consensus on ERAS for gynecological surgery.The search was conducted from inception to July 1,2023,and the AGREE Ⅱ and RIGHT tools were used to analyze the current status and quality of the included guidelines/consensus,as well as to conduct a summary of the recommendations.Results A total of 5 guidelines and 10 consensus statements were included.The publication years were from 2018 to 2023,originating from the United States,China,Canada,and the United Kingdom.In the 6 areas evaluated using AGREEⅡ,clarity(66.06％)scored highest,followed by scope and purpose(56.67％),involvement of stakeholders(42.02％),and editorial independence(37.64％)with scores above 30％.The scores for rigor of development(26.88％)and applicability(4.17％)were relatively low.The same items among different evaluators indicated good consistency.The results of the scores in each area were as follows:A-level 2,B-level 13,and no C-level.Two high-quality guidelines were selected.The average RIGHT reporting rate was 44.38％.Subgroup analysis showed that guidelines were higher than consensus statements in the areas of rigor of development and applicability(P＜0.05),and that using GRADE was higher than not using(P＜0.05).The areas of rigor of development and clarity were higher in foreign guidelines than domestic guidelines(P＜0.05),and using evidence grading tools was higher than not using(P＜0.05).The summary of the recommendations showed that the quality of the evidence supporting the recommendations was uneven,and some recommendations were not specific enough.Conclusion The quality of the 15 included ERAS guidelines/consensus in obstetrics and gynecology is uneven,and 2 of them can be used as high-quality guidelines for clinical reference.The quality of evidence-based guidelines in foreign countries is higher,and the use rate of GRADE in foreign guidelines is high,most of which can provide clear recommendation strength and evidence level.Chinese guidelines/consensus are of lower quality compared to overseas,and methodology and report quality need further improvement.Overall,it is still necessary to strengthen the formulation of methods and reporting standards,improve the quality of evidence,and refine specific recommendations.