Results 61 to 70 of about 10,804,317 (105)

东湖铜绿微囊藻毒素的分离与鉴定

open access: yes, 1988
1984—1985年从武昌东湖定期采集形成水华的铜绿微囊藻Microcystisaeruginosa,并进行了毒素的分离与鉴定。结果表明:(1)用反复冻融的藻细胞糊对20—25g小白鼠进行腹腔注射,其最低致死浓度为100mg/kg(LD_(100)=100mg/kg),致死时间为60—120min。(2)用匀浆、抽提、离子交换层析及高压液相层析(HPLC)纯化了毒素,纯化毒素对小白鼠的最低致死量约为lmg/kg ...
何家菀,何振荣,俞家禄,俞敏娟
core  

[Meige syndrome with dyspnea as main manifestation: a report of one case and literature review]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Liu T, Xu J, Ye J.
europepmc   +1 more source

一种用于去除内毒素的亲和膜分离器

open access: yes, 1998
一种用于去除内毒素的亲和膜分离器,它是由底壳,壳底里表面形成的下压板,亲和膜介质,上压板,压环和上盖几个主要部分构成的,其中在底壳内加有带胶粘密封层的亲和膜介质,在亲和膜介质加上压板和在压板上装上压环,再将上盖用螺纹安装在底壳上,并使壳体内外密闭。该分离器可用于多种溶液,特别是水或生物样品溶液中内毒素的去除,溶液中的内毒素水平可降至0.1ng/ml以下,处理量可达几百毫升 ...
于亿年   +4 more
core  

[Chinese expert consensus on chimeric antigen receptor T-cell therapy for multiple myeloma (2026)]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Chinese Medical Doctor Association   +3 more
europepmc   +1 more source

微囊藻毒素分离、检测及物理化学性质研究

open access: yes, 2009
微囊藻毒素(Microcystin,简称MC)是由淡水蓝藻产生的一种水溶性肝毒素。随着蓝藻水华在世界范围的淡水和咸水水体中的频繁发生,水华污染带来的水质安全问题和水产品安全问题已成为全球关注的卫生问题。微囊藻毒素标准品是开展为微囊藻毒素相关研究的必需的实验材料。为了解决我国对毒素标准品大量需求的矛盾,我们在借鉴了国内外已有经验的基础上,发展了微囊藻毒素的纯化新工艺。 以滇池天然水华蓝藻为原料,建立了以甲醇溶液、醋酸溶液提取,固相萃取和半制备色谱分离为主要步骤的微囊藻毒素分离纯化方法。通过优化提取 ...
余婷
core  

[Comparison of antiviral efficacy of nucleos(t)ide analogue monotherapy and its combination with interferon-α in children 1-6 years-old with HBeAg-positive chronic hepatitis B]. [PDF]

open access: yesZhonghua Gan Zang Bing Za Zhi
Wang ZW   +11 more
europepmc   +1 more source

[Antibacterial activity and mechanism of the antiparasitic drug resorantel against <i>Staphylococcus epidermidis</i>]. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Guo S   +6 more
europepmc   +1 more source

[N-carbamylglutamate in the treatment of neonatal organic acidemia crisis: a report of five cases]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Zhao HY   +5 more
europepmc   +1 more source

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