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author:

叶芳贵 (叶芳贵.) [1] | 谢增鸿 (谢增鸿.) [2] | 林旭聪 (林旭聪.) [3] | 郭良洽 (郭良洽.) [4] | 陈国南 (陈国南.) [5]

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CQVIP

Abstract:

基于DNA对荧光素(FL)-中性红(NR)分子间荧光能量转移的抑制作用,以荧光素-中性红为荧光探针,考察该探针与DNA的结合反应,建立了准确测定DNA的新方法,在pH=6.5条件下,hsDNA、ctDNA和smDNA的浓度与荧光素-中性红体系的荧光比值变化量Δ(Fd/Fa)成线性关系,响应线性范围分别为0.25~6.25 μg/mL、0.10~5.00 μg/mL、0.10~4.00 μg/mL,检测限(3σ/K)分别为0.021 μg/mL、0.025 μg/mL和0.023 μg/mL;分析测定了DNA合成样品,回收率91.3 %~101.4 %,相对标准偏差小于4.2 %.

Keyword:

DNA 中性红 测定 荧光分析法 荧光探针 荧光素

Community:

  • [ 1 ] 福州大学化学化工学院化学系,福建,福州,350002

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Source :

分析测试技术与仪器

ISSN: 1006-3757

Year: 2003

Issue: 2

Volume: 9

Page: 74-79

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 2

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