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phase wave length
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  “phase wave length”译为未确定词的双语例句
     The analysis of the yellow crystal by HPLC showed the best conditions for the isolation of its antibacterial substance were mobile phase,wave length 200 nm,acetonitrile(600 g/L). In the peak aera,the content of antibacterial substance was 961.1 g/L.
     此结晶用HPLC分析得到分离抑细菌物质的最佳条件为流动相:乙腈溶液600 g/L,检测波长200nm,从HPLC图谱峰面积来看有效物质含量达到961.1 g/L。
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  相似匹配句对
     Wave equation phase displacement migration
     波动方程相移偏移法
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     PHASE LOCKING OF MILLIMETER WAVE VIRCATORS
     毫米波虚阴极器件的锁相
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     Red Wave
     红色浪潮
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     EMOTIONAL WAVE
     情感的风涛——读秀侠
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     Differential phase
     微分相位的测量
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  phase wave length
We have also derived the deBroglie wave length and the relativistic phase wave length he introduced.
      


Objective:To establish a method for the quantitative determination of rutin and quercetin in the flavonoids from tartary buckwheat. Methods:The contents of rutin and guercetin in hydrolysis and un-hydrolysis sample was detected with rutin and quercetin as the mark sample respectively. Results:By KromasilC18-column with 0.4% of phosphoric acid-methanol(volume ratio of 40 ∶ 60)as the mobile phase wave length 358 nm,the flow rate was 1.0 mL/min,the column temperature was set at 20 ℃,the calibration curves...

Objective:To establish a method for the quantitative determination of rutin and quercetin in the flavonoids from tartary buckwheat. Methods:The contents of rutin and guercetin in hydrolysis and un-hydrolysis sample was detected with rutin and quercetin as the mark sample respectively. Results:By KromasilC18-column with 0.4% of phosphoric acid-methanol(volume ratio of 40 ∶ 60)as the mobile phase wave length 358 nm,the flow rate was 1.0 mL/min,the column temperature was set at 20 ℃,the calibration curves were linear in the ranges of 0.025~0.125 g/L(r=0.9993)and 0.008~0.256 g/L(r=0.9995) for rutin and quercetin respectively. The average recoveries were 98.5% and 99.9%. The CV were 1.16%(x,n=5) and 1.50%(x,n=5)for rutin and quercetin respectively. The concents of quercetin were(194.7±4.22)mg/g(CV 2.17% )in the hydrolysis sample. Quercetin were(8.96±0.26)mg/g(CV 2.90%),rutin were(83.84±3.29)mg/g(CV 3.92%)in the un-hydrolysis sample (x,n=3). Conclusion:This method is simple,rapid,accurate and reliable. It is useful for determination rutin and quercetin in the flavonoids from tartary buckwheat.

目的:建立一种苦荞黄酮中芦丁和槲皮素含量的测定方法。方法:分别以芦丁和槲皮素为标品,采用KromasilC18反相柱(4.6mm×300mm,5μm),分别测定水解和未水解苦荞黄酮样品中芦丁和槲皮素的含量。结果:在流动相为0.4%磷酸-甲醇(体积比为40∶60)、检验波长358nm、进样速度1.0mL/min、柱温20℃条件下,测定的芦丁含量的线性范围为0.025~0.125g/L(r=0.9993),槲皮素含量的线性范围为0.008~0.256g/L(r=0.9995)。槲皮素的加样回收率99.9%,变异系数为1.50%(x,n=5);芦丁的加样回收率98.5%,变异系数为1.16%(x,n=5)。水解样中槲皮素含量为(194.7±4.22)mg/g,未水解样中槲皮素含量为(8.96±0.26)mg/g,芦丁含量为(83.84±3.29)mg/g,变异系数(x,n=3)分别为:2.17%、2.90%和3.92%。结论:该方法简便、快速、准确,可用于苦荞黄酮中芦丁和槲皮素的含量测定。

 
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