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有机相尼龙针式滤器(白色)

英文名称:

Nylon Syringe Filter

商品编号:

SCAA-103

品牌:

ANPEL

规格型号:

13mm*0.45um,100只/罐

单位:

级别:

标准价:

90.00

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数量:

库存与货期:

 现货

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外壳为化学稳定性极好的聚丙烯(PP)材质,滤膜采用耐有机溶剂增强型尼龙微孔滤膜,为高分子聚合物在特殊工艺条件下制成的一种耐各种有机溶剂的筛网型精密滤材。产品质量稳定,重现性好。具有强度好、幅度宽的特点,它可以在液相、气相中分离、净化,富集微粒、异物、飘尘和气溶胶,广泛应用于医药、生化、微电子和环境保护等行业。标准的接口方便和各种注射器相连,也可直接与7725阀的针头相连,过滤后直接进样。

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1. Rapid analysis of malachite green and leucomalachite green in fish muscles with surface-enhanced resonance Raman scattering(用表面增强共振拉曼散射快速分析鱼肌中的孔雀石绿和隐色孔雀石绿)

Surface-enhanced resonance Raman scattering (SERRS) coupled with gold nanospheres was applied for rapid analysis of the hazardous substances malachite green (MG) and leucomalachite green (LMG) in fish muscle tissues. The lowest concentration of MG that could be detected was 0.5 ng mL-1 with high linear correlation (R2= 0.970–0.998) between MG concentration and intensities of characteristic Raman peaks. A simplified sample preparation method taking less than 1 h for recovering MG and LMG in fish fillets was developed for SERRS analysis, and 4–8 samples could be handled in parallel. MG and LMG could be detected in extracts of tilapia fish fillets at as low as 2 ng g-1 with SERRS and a simple principle component analysis method. For six other fish species, the lowest detectable concentration of MG ranged from 1 ng g-1 to 10 ng g-1. This study provides a new sensitive approach for the detection of trace amounts of the prohibited drugs MG and LMG in muscle food, which has the potential for rapidly screening a large number of samples.(表面增强的共振拉曼散射(SERRS)和金纳米球被用于快速分析鱼类肌肉组织中有害物质的有害物质(MG), (LMG),(LMG)。一种简单的样品制备方法被开发,利用SERRS技术不到1小时时间从鱼块中回收MG and LMG,4-8个样品可以同时平行试验。用SERRS在罗非鱼鱼块提取物中检测到MG and LMG浓度2 ng g-1,其他六种鱼块MG的最低检测浓度从1 ng g-1到10 ng g-1。这项研究提供了一种新的灵敏方法,用于检测肌肉食品中违禁药物MG和LMG的微量含量,这种方法可以迅速筛选大量的样本。)

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