大众科技
大衆科技
대음과기
DAZHONG KEJI
2013年
8期
51-52,50
,共3页
核酸%罗丹明B%共振散射%线性
覈痠%囉丹明B%共振散射%線性
핵산%라단명B%공진산사%선성
Nucleic acids%Rhodamine B%resonance scattering%linear
基于脱氧核糖核酸(DNA)对罗丹明B(Rh B)的共振散射的增强效应,拟定了一种新的测定DNA的共振散射法,在pH=0.93的条件下,罗丹明B只有极弱的光散射,但它与脱氧核糖核酸作用后却有强烈的共振光散射作用,在λ=298nm处,光散射有最大的散射强度,并且光散射强度与脱氧核糖核酸(DNA)的浓度呈线性关系,线性方程为:I=4.40+11.28C(mg/L),线性范围为:0.0128mg/L~8.96 mg/L,基于此建立了具有较高灵敏度、操作简单的脱氧核糖核酸测定方法,将该方法用于脱氧核糖核酸人工合成样品的测定,结果满意。
基于脫氧覈糖覈痠(DNA)對囉丹明B(Rh B)的共振散射的增彊效應,擬定瞭一種新的測定DNA的共振散射法,在pH=0.93的條件下,囉丹明B隻有極弱的光散射,但它與脫氧覈糖覈痠作用後卻有彊烈的共振光散射作用,在λ=298nm處,光散射有最大的散射彊度,併且光散射彊度與脫氧覈糖覈痠(DNA)的濃度呈線性關繫,線性方程為:I=4.40+11.28C(mg/L),線性範圍為:0.0128mg/L~8.96 mg/L,基于此建立瞭具有較高靈敏度、操作簡單的脫氧覈糖覈痠測定方法,將該方法用于脫氧覈糖覈痠人工閤成樣品的測定,結果滿意。
기우탈양핵당핵산(DNA)대라단명B(Rh B)적공진산사적증강효응,의정료일충신적측정DNA적공진산사법,재pH=0.93적조건하,라단명B지유겁약적광산사,단타여탈양핵당핵산작용후각유강렬적공진광산사작용,재λ=298nm처,광산사유최대적산사강도,병차광산사강도여탈양핵당핵산(DNA)적농도정선성관계,선성방정위:I=4.40+11.28C(mg/L),선성범위위:0.0128mg/L~8.96 mg/L,기우차건립료구유교고령민도、조작간단적탈양핵당핵산측정방법,장해방법용우탈양핵당핵산인공합성양품적측정,결과만의。
A new resonance light scattering (RLS) method is resented in this paper. In pH=0.93 Clark-Lubs buffer, Rhodamine B combined with DNA resulted in an enhanced Resonace light scattering. The RLS intensity at 298nm is maximum and proportional to the concentration of protein in the range of 0.0128mg/L~8.96 mg/L, linear equation of the deoxyribonucleic acid were I=4.40+11.28C(mg/L). The method is simple, rapid and sensitive. It is applied to a synthetic sample with satisfactory results.