两种简便测定尿肌酐排出量的方法     

林文Tao  黄丽英 《上海体育学院学报》1996,20(2):39-42

采用实验评定法,对同一天的尿液分别测定两个时段的尿肌酐量、晨尿肌酐量及全日尿肌酐量,并对两种简便测定尿肌酐的方法进行分析比较。结果表明,两段尿测定法与一段尿法均能比较客观代表全日尿肌酐量。  相似文献   

应用斐林试剂与碘液时的几点注意问题     

单林兰 《中学生物学》2006,22(11):40-40

实验原理：淀粉和蔗糖为非还原性糖，它们在酶的作用下，都能水解成还原性糖，还原性糖能与斐林试剂发生氧化还原反应，生成砖红色的氧化亚铜沉淀。  相似文献   

尿洗合剂治蚜治     

薛勇 《华夏星火》2001,(6):23-23

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《中文自修》袖珍试卷 上海民办张江集团学校语文组 初三语文试卷     

《中文自修》2011,(12)

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教学暗示在小学语文教学中的运用分析     

《学周刊C版》2017,(21):60-61

目的:探讨会阴收缩力计辅助缩肛运动对骶骨固定术后压力性尿失禁(SUI)预防和治疗作用及尿动力学改变情况。方法:选择2014-2016年因中重度盆腔器官脱垂施行腹腔镜阴道骶骨固定术的患者为研究对象,术后68例患者作为预防SUI的尿动力学研究对象,54例患者作为治疗SUI的尿动力学研究对象,两部分研究对象均采用随机数字表法分为对照组和试验组,预防研究部分每组34例,治疗研究部分每组27例。对照组采用常规的缩肛运动,试验组则采用会阴收缩力计辅助缩肛运动,训练时间均为1年,并采取尿动力检查指标进行评估。结果:SUI的预防研究中,试验组SUI发生率为5.9%,低于对照组的26.5%(P<0.05);SUI的治疗研究中,试验组治愈率为63.0%,高于对照组的22.2%(P<0.05)。两部分研究中,试验组VLPP、PQmax、PMUC、BC均高于对照组,差异均有统计学意义(P<0.05)。结论:会阴收缩力计辅助缩肛运动可改善和促进骶骨固定术后尿动力学指标,对SUI有预防和治疗作用。  相似文献   

分光光度法测定海带中的碘   总被引：3，自引：0，他引：3  

谢少艾  陈虹锦  马荔  张卫 《实验室研究与探索》2005,24(7):16-17

讨论了用Fe^2＋-邻二氮菲体系分光光度法间接测定海带中微量碘含量的方法。本实验以NH4Fe（SO4）2作为氧化剂，使用邻二氮菲作为显色剂，通过测得吸光度与Fe^2＋溶液浓度成线性关系，可间接测定海带提取溶液中I^-的浓度。该法具有准确度高，重现性好，简便快速的特点，是测定海带中微量碘的一种较理想的方法。  相似文献   

如何避免碘遇淀粉变蓝后又褪色     

刘忠慧 《生物学教学》2004,29(7):35-35

在用碘检验淀粉的实验中,常出现碘使淀粉变蓝后,过一段时间又褪色的情况。主要是碘与淀粉形成的络合物不稳定易分解,所以褪色。实验时,在碘液中加少量的盐酸或变蓝后加少量的盐酸,就会避免褪色。  相似文献   

检验Br^—和I^—的实验研究     

胥光勇 《化学教学》1994,(1):10-13

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Investigation of iodine concentration in salt,water and soil along the coast of Zhejiang,China     

陆颖理  王宁荐  朱岚  王国兴  吴晖  匡琳  朱文明 《Journal of Zhejiang University. Science. B》2005,6(12):1200-1205

Objective: We aim to describe the environment iodine concentration in salt, water and soil along Zhejiang Province coast in the China foreland. It will be helpful for us to judge whether this area is insufficient in iodine and universal iodized salt is necessary or not. Methods: We collected iodized salt samples, drinking water samples (tap water in the towns, and well water or spring water in the villages), water samples from different sources (ditches, lakes, rivers) and soil samples through random sampling in June, 2005. Salt, water and soil iodine was detected by arsenic-cerium redox method. Statistical analysis was expressed as mean±SEMby Windows SPSS 13.0. Results: (1) The iodine concentration in salt was 27.9±4.33 mg/kg (n=108). (2) Seventy-five water samples were collected. The water iodine value was 0.6～84.8 μg/L (mean of 11.66 μg/L). The watershed along the Qiantang River has significantly higher iodine content than the water in Lin'an in mountain area (P＜0.01). The iodine content and mean iodine content of tap water, well or spring water and natural water sources were 4.30±2.43 μg/L (n=34), 23.59±27.74 μg/L (n=19)and 12.72±10.72 μg/L (n=22) respectively. This indicated that among environmental water sources, the ditch iodine content was the highest with river water iodine being the lowest (P＜0.01). (3) Soil iodine value was 0.11～2.93 mg/kg (mean of 1.32 mg/kg).Though there was no statistical difference of soil iodine in different districts (P=0.131), soil iodine content correlated positively with water iodine content. Conclusion: Iodine concentration in salt accords with national policy of adding iodine in salt. Foreland has more iodine in water than mountain area. The data reflected that water and soil iodine in foreland area was not high, which suggests universal iodized salt should be necessary. Environment iodine has relatively close association with pollution.  相似文献   

碘酸钙溶度积的测定     

杨水彬  倪春林 《黄冈师范学院学报》1995,(3)

采用碘量法测定碘酸钙溶度积常数，方法十分简单，测定结果满意．  相似文献