用SPE法萃取,GC／NPD检测全血中氯氮平药物

本文报道了用固相萃取技术（ＳＰＥ）富集分离全血中的氯氮平药物，采用气相色谱氮磷检测器（ＧＣ／ＮＰＤ）分析方法凤ＳＫＦ５２５Ａ为内标物，在１ｍｌ全血中加入２．０μｇ药物，回收率为９０．０％，ＲＳＤ为７．９５％，血中最低检出浓度为５８ｎｇ．ｍｌ＾－１，该方法具有简单、快速、准确、１灵敏的优点。     

苯酚对革胡子鲇血液指标的影响

研究了不同浓度苯酚处理24h后对革胡子鲇血液指标的影响，结果表明，苯酚浓度为5－30mg/L时能使鱼红血球数，血红蛋白值，红细胞脆性值，血浆晶体渗透压及血浆电率下降，苯酚浓度越高，下降幅度越大，而红细胞沉降率随苯酚浓度增高而增大，20mg/L浓度的苯酚处理24h后鱼红细胞体积变小，文中对实验结果进行了分析讨论。     

清晨空腹饮水有利健康

清晨起床时,人体血液粘稠度较高,体内代谢物堆积,会产生血流缓慢、供血不足、血压偏低等现象,容易诱发血栓,甚至导致中风、心肌梗塞等。因此,清晨起床后,可先空腹饮水,并进行适当的户外活动,使饮下的水随着身体的运动对胃、肠道进行清洗,并稀释血液。而且,清晨饮水还可以稀释尿液,使积蓄一夜的固态废物溶解于已冲淡的尿液中排出体外。这不仅可以清洁尿道,而且还可以通过尿液及时排出有害物质,防止膀胱癌的发生。此外,清晨饮水还可以增强肝脏的解毒能力及人体的免疫能力,并有预防口臭和防治咽炎的作用。清晨空腹饮水有利健康     

冬去春来话健康

起居规律。春天到来之时,人体阳气渐趋于表,皮肤舒展,末梢血液供应增多,汗腺分泌也增多,身体各器官负荷加大,而中枢神经系统却发生一种镇静、催眠作用,肢体感觉困倦。这时千万不可贪图睡懒觉,它不利于阳气升发。为了适应这种气     

五类食物伤大脑

过咸食物 人体对食盐的生理需要极低，成人每天7克以下、儿童每天4克以下就足够了。常吃过成食物会损伤动脉血管，影响脑组织的血液供应，使脑细胞长期处于缺血、缺氧状态，从而导致记忆力下降、大脑过早老化。     

9种补脑健脑食物

<正>随着年纪的增长,记忆力好像也越来越差了!下面推荐的9款平日常见的食物,具有较强的补脑健脑功效,日常饮食中可适当补充。鸡蛋大脑活动功能、记忆力强弱与大脑中乙酰胆碱含量密切相关。实验证明,吃鸡蛋的妙处在于:当蛋黄中所含丰富的卵磷脂被酶分解后,能产生出丰富的乙酰胆碱,进入血液又会很快到达脑组织中,可增强记忆力。国外研究证实,每天吃一两个鸡蛋就可以向机体供给足够的胆碱,对保护大脑、提高记忆力大有好处。     

如何在企业进行血液传染病防护

血液传染病是指血液性的致病微生物如细菌和病毒，包括乙肝病毒HBV、爱滋病毒HIV等。人们在接触血液或其他潜在感染物品时可能在血液传染性病毒中暴露，从而感染眼睛、嘴和其他粘膜或受创皮肤。由于职业暴露(由于职业原因眼睛、嘴、破损皮肤或黏液接触血液或其他感染性物品)可能引起感染和疾病，给员工带来生命和健康危害，所以我们要通过防护来消除或减少该危害。     

Impact of some chlorinated pesticides on the haematology of the fish Cyprinus carpio and Puntius ticto

The effects of pesticides on blood characteristics and histological changes in erythrocytes of the fish species Cyprinus carpio and Puntius ticto were studied. The fishes were exposed to sub lethal concentrations of different chlorinated pesticides namely aldrin, dieldrin, DDT, BHC and chlordane for 10, 20 and 30 d in continuous flow-through test. The LCso values were calculated based on acute toxicity tests and the sublethal doses were arrived at for chronic bioassay studies. Results showed an increase in haemoglobin content of both Cyprinus carpio and Puntius ticto in case of aldrin and dieldrin. Haemoglobin content reduced from an initial 13 g/100 ml to 8.07 and 10.15 g/100 ml in case of Cyprinus at the end of ten days exposure to aldrin and dieldrin respectively, and gradually increased to 8.7 g/100 ml and 10.15 g/100 ml after 20 d of exposure. The haemoglobin content after 30 d exposure to aldrin and dieldrin was 10.15 g/100 ml and 11.6 g/100 ml respectively. In case of Puntius ticto, the haemoglobin content in control fishes recorded was 12.8 g/100 ml while in case of fish exposed to aldrin, the haemoglobin content reduced initially on ten days exposure to 10.15 g/100 ml and increased to 11.6 g/100 ml and 13.0 g/100 ml during twenty days and thirty days exposure respectively. This trend was also observed with dieldrin in both the fishes studied. Red blood cells were also counted in case of all the pesticides and exposure periods with respect to Cyprinus carpio and Puntius ticto. Irrespective of the species and pesticide, the RBC counts uniformly showed decreasing trend with the increase in exposure period, while packed cell volume, PCV(%) showed increasing trend with respect to increase in exposure period in case of aldrin and dieldrin in both the fishes. But DDT, BHC and chlordane showed decreasing trend in PCV(%) values with increasing periods of exposure.     

汽车尾气对人精子运动能力影响探讨

采用［日］岛津AA－670型原子吸收分光光度计,四唑氮蓝（Nitro－BT）染色法,及图象分析仪（MIAS－300）分析了交通警察和男性师生两人群精液的精子运动能力参数和血铅水平。结果显示：与对照组比较,交警组精子活动能力降低（P＜0.05）,精子琥珀酸脱氢酶（SDH）活性明显抑制（P＜0.001）。而且SDH活性与血铅水平呈负相关。认为交警精子活动能力下降可能和铅干扰精子线粒体能量代谢有关。