邻苯二酚

The method was based on the enhancement effect of the resonance light scattering due to the combination of pyrocatechol violet with HSA.

基于人血清白蛋白对邻苯二酚紫的共振光散射的增强效应，拟定了一种测定HSA的新的共振光散射体系。

Based on the nitrite catalyzed oxidation of pyrocatechol violet by potassium bromate, a new catalytic spectrophotometric method for determination of trace nitrite has been developed.

基于在磷酸溶液中，亚硝酸根对溴酸钾氧化邻苯二酚紫的褪色反应具有催化作用，建立了催化光度法测定微量亚硝酸根的新方法。

First, OFF and LTL single crystals were synthesized in different systems, such as traditional conditions, synthesis in the presence of F〓, and in the presence of pyrocatechol.

采用水热合成法，分别在传统体系、F〓体系和邻苯二酚体系中合成了第二类沸石中的OFF和LTL单晶，并考察了碱度、硅铝比、水量、晶化温度等对合成晶体形貌的影响。

Indirect determination of total acid-soluble aluminum in natural waters by oscillopolarography in the presence of pyrocatechol violet is presented.

报道邻苯二酚紫-示波计时电位法间接测定天然水中的总酸溶铝。

A spec-trophotometric method of the determination of trace tin was developed based on the reaction of tin with Pyrocatechol Violet in the presence of Cety Trimethylammonium Bromide in high alloy steel.

通过对干扰离子的影响及其消除方法的研究，提出了适用于高合金钢中的以邻苯二酚紫-溴化十六烷基三甲基胺光度法测定微量锡的分析方法。

A spectrophotometric determination of iodine by oxidation decoloration reaction of pyrocatechol violet by iodatein a strong acid medium is reported in this paper.

本文提出了在强酸性条件下，根据碘酸根氧化邻苯二酚紫使其褪色吸光光谱法测定加碘食盐中碘含量的分析方法。

Category Ⅰ: lgβ〓=16～19, lgβ〓=28～32, lgβ〓＞32,Δ～12, such as solochrome violet RS and pyrocatechol violet, they can be employed for determination of Al〓 at pH 4～5, while at pH 8～9 the complex ability of reagents increased obviously, so it can be used for the determination of Al〓.

类试剂：累积稳定常数较大。lgβ〓＝16～19，lgβ〓＝28～32，lgβ〓＞32，△～12。如酸性媒染紫、邻苯二酚紫。该类试剂在酸性pH4～5下可测定无机单核铝，而在碱性pH8～9下测定总单核铝；由于lgβ〓均较大，易和铝形成螯合能力极强的1∶3配合物。

The results were as follows: the activity of prawns was highest under the condition of pH 7.0, 35 ℃ using pyrocatechol as substrate; four inhibitors i.e ascorbic acid1 mg·mL~(-1, sodium sulphite2 mg·mL~(-1, phytic acid1 mL·L~(-1 and EDTA0.1 mg·mL~(-1 had some inhibiting effects on the PPO of prawns, in which the effect of phytic acid1 mL·L~(-1 was the best; the PPO activity of prawns increased gradurally during the storage period; the PPO activity of prawns was inhibited in vacuum environment, the lower the storing temperature was, the stronger the PPO activity was.

结果表明：以邻苯二酚为底物，虾PPO活性的最适pH为7。 0，最适温度为35 ℃；4种抑制剂(1 mg·mL-1抗坏血酸、2 mg·mL-1亚硫酸钠、1 mL·L-1植酸及0。 1 mg·mL-1EDTA)对南美白对虾PPO都表现出一定的抑制作用，以1 mL·L-1植酸抑制作用最强；南美白对虾在贮藏过程中PPO活性逐渐上升，真空环境中PPO活性受到抑制，贮藏温度越低，抑制作用越强。

It adapts to various sorts of fragrance adjustment. Raw materials to produce heliotropine are safrole oil and dihydroxybenzene .

生产洋茉莉醛的原料有黄樟油和邻苯二酚，多数国家包括中国一直采用黄樟油原料。

The rate constant of thereaction of pyrocatichol with organic peroxyl radicals is about 1～2 orders higher thanits reaction with superoxide anion radical.

邻苯二酚与有机过氧自由基的反应速率要比与超氧阴离子自由基的反应速率高1～2个数量级。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。