雄猴为什么尿洗自己

多个猴种无论雄猴还是雌猴都会撒尿在自己手上，然后使劲将尿液摩擦进自己的皮毛中。对此，科学家提出了从调节体温到表示攻击陛的多种理论。最近，对雌性，雄猴的尿发出了性信号。     

新型自助式医用尿检池设计

尿液检查是身体检查的一项常规检查,尿液标本的采集、尿液分析是直接关系检验结果的准确度。针对现今医院尿液采集耗时较长、二次污染、过程繁琐、运送及分析不便等情况,本文论述的是一种方便患者自己操作的新型尿检池,该尿检池集尿液采集和微型尿液分析于一体,实现了尿液收集及检测的快速化完成。     

GC-MS/MS法检测尿液中的苯丙胺类毒品成分

建立快速检测尿液中苯丙胺类毒品成分的气相色谱—串联质谱联用法(GC—MS／MS)。该方法快速、简便、灵敏、准确，适用于快速检测尿液中的苯丙胺类毒品成分。     

Enantioselective assay of S（＋）－ and R（－）－propafenone in human urine by using RP－HPLC with pre－column chiral derlvatization

The enantioselective assay for S(+)- and R(-)-propafenone (PPF) in human urine that developed in this work involves extraction of propafenone from human urine and using S(+)-propafenone as internal standard, chiral derivatization with 2,3,4,6-tetra-O-beta-D-glucopranosyl isothiocyanate, and quantitation by an RP-HPLC system with UV detection (lambda=220 nm). A baseline separation of propafenone enantiomers was achieved on a 5-microm reverse phase ODS column, with a mixture of acetic acid (25:12:0.02,v/v) as mobile phase. There was good linear relationship from 24.9 ng/ml to 1875.0 ng/ml for both of enantiomers. The regression equations of the standard curves based on C(S-PPF) (or C(R-PPF)) versus ratio of A(S-PPF)/A(S) (or A(R-PPF)/A(S)) were y=0.0032x-0.081, (r=0.999) for S-PPF and y=0.0033x+0.0039, (r=0.998) for R-PPF, respectively. The method's limit of detection was 12.5 ng/ml for both enantiomers, and the method's limit of quantitation was 28.2+/-0.52 ng/ml for S-PPF, 30.4+/-methanol:water:glacial 0.53 ng/ml for R-PPF (RSD<8%, n=5). The analytical method yielded average recovery of 98.9% and 100.4% for S-PPF and R-PPF, respectively. The relative standard deviation was no more than 6.11% and 6.22% for S-PPF and R-PPF, respectively. The method enabled study of metabolism of S(+)- and R(-)-propafenone in human urine. The results from 7 volunteers administered 150 mg racemic propafenone indicated that propafenone enantiomers undergo stereoselective metabolism and that in the human body, S(+)-propafenone is metabolized more extensively than R(-)-propafenone.     

尿液化验制片设备

成果简介 该设备采用机电一体化设计技术，是在消化和吸收国外产品技术的基础上自行研制的。它具有自动化程度高，生产效率高等优点。在桂林无线电四厂投入使用以来，每年生产各类尿液化验制片20万筒(每筒100条)，年创产值上千万元。     

人尿中的‘H—NMR谱：NMR波谱技术在临床检验上的应用

本利用核磁共振（ＮＭＲ）技术对人体尿液进行测试与分析，从中可以看出，健康人，肾病患，糖尿病患的尿样在’Ｈ－ＮＭＲ中表现的特征峰均不一样，从而为临床检验提供了一个有用的证据。     

尿液试带分析的可靠性评价

目的:探讨尿液试带分析的可靠性。方法:对924例随机尿液的尿液试带检测结果与显微镜镜检结果进行对比分析。结果:尿液试带对WBC的敏感度为84.6％,对RBC的敏感度为88.4％,试带阳性尿液WBC的假阴性为3.3％,比阴性尿液的假阴性高1.7％。试带检测WBC和RBC都显示了较高的假阳性,分别为4.2％和6.4％。结论:试带法只能作为过筛方法,对阳性尿液的镜检是必要的。     

新知

西兰花和大豆降低患癌几率，大蒜加维生素C可能有降压功效，尿液浓缩的种族差异与血压的可能关系。