对苯二酚

Results: Oxidation resistance effect of 0.10% loquat leaf flavanone was close to that of 0.05% tertiary butylhydroquinone, indicating the loquat 1eaf flavanone had obviously oxidation resistance effect to the fat with quantitative relationship. Antiscorbutic acid and the loquat leaf flavanone has the coordination oxidation resistance effect.

结果：0.10%枇杷叶黄酮的抗氧化效果和0.05%叔丁基对苯二酚相近，表明枇杷叶黄酮对油脂的抗氧化效果明显，且作用呈一定的量效关系，抗坏血酸与枇杷叶黄酮有协同抗氧化效应。

The influence of acrylic acid and cetane alcohol,amount of catalyst and inhibitor,reaction temperature,reaction time were investigated.

实验结果表明，合成的最佳反应条件为：丙烯酸与十六酯的物质的量之比为1.2∶1，对甲苯磺酸的用量为0.6%，对苯二酚的用量为0.4%，反应温度为110℃，反应时间为5 h。

Hydroquinone is one of the key ingredients in Obagi Nu Derm and is a very strong ingredient which can cause adverse affects if not used correctly. With the Obagi system you are unlikely to see these affects but you can never be sure. This is a negative for the Obagi Nu-Derm system and may put a lot of people off using the system.

对苯二酚是欧邦琦 Nu-Derm 系统关键成分之一，如果使用不当，也是导致副反应的主要因素，您未必能见到欧邦琦的这些副反应，但您永远不要确定，对欧邦琦来说这是消极的，可能会使一些人中途放弃。

One aspect of activation of heavy metal elements during the course of acid rain eluviation is probably determined by the ability of the acid buffer capacity of soil and the other more important aspect is probably related with their existing forms in the soil.

通用型土壤活性组分提取剂试制结果表明，用醋酸铵＋DTPA＋对苯二酚混合提取剂能有效提取土壤中的活性组分，对评价土壤重金属污染的生态效应具有积极的作用。

The optimal conditions were 30 ℃,28.26 lx,2 min,λ40nm, n (AgNO\-3)∶ n=2∶1,dosage of metol 0.5 g/L and dosage of hydroquinone 5 g/L.

适宜条件为 30℃，2 8.2 6lx，2min ，λ 4 0nm ，n(AgNO3 )∶n =2∶1，硫酸对甲胺基苯酚用量为 0 5g/L ，对苯二酚用量为 5g/L。

Diffusion coefficients for metol and p-benzenediol were 2.1×10 cm^2/s and 2.7×10^6 cm^2/s, respectively. The electrocatalysis mechanism has been studied. ATR-FTIR was used for the characterization of the ME/Au SAMs. The oxidation currents were linear in the range of 1.0×10^(-7)~1.0×10^(-4)mol/L for metol and 6.0×10^(-6)~6.0×10^(-4)mol/L for p-benzenediol, with the correlation coefficients of 0. 9992 and 0.9996 by differential pulse voltammetry, and detection limit 2.0×10^(-8)mol/L and 1.2×10^(-6) mol/L for metol and p-benzenediol, respectively.

采用水平衰减全反射－傅立叶变换红外光谱技术对ME/Au SAMs进行了表征，示差脉冲伏安法同时测定米吐尔和对苯二酚，不产生干扰，其氧化峰电流与相应物质的浓度分别在1.0×10^(-7)~1.0×10^(-4)mol/L和6.0×10^(-6)~6.0×10^(-4)mol/L范围内呈良好的线性关系，相关系数分别为0.9992和0.9996，检测限分别为2.0×10^(-8)和1.2×10^(-6)mol/L。

The results showed that the redox peak potential difference of metol on IL/CPE was smaller than that on the bare CPE, while peak current was significantly increased, which indicated that IL/CPE had electrocatalytic activity toward the redox of metol.

研究表明，米吐尔在IL/CPE上的氧化、还原峰电位差比其在裸碳糊电极上的小，而峰电流却显著增加，说明IL/CPE对米吐尔有电催化作用；共存物对苯二酚干扰米吐尔的测定，通过方波伏安法可以消除其干扰。

The modified pyrophyllite can adsorb 83.1% of hydroquinone molecules, while natural pyrophyllite did only 26.8% of them.

采用湿法活化工艺选择不同类型的有机活化剂对叶蜡石粉体进行了活化处理，并进行了对水中极性有机物对苯二酚的吸附实验。

Because of Makari's exclusive Bleach and Hydroquinone -free formula, our products are gentle on your skin but tough on pigment marks, scars, liver spots and stretch marks.

由于真雁独有的漂白剂和对苯二酚无配方，我们的产物是平和的，但对你的皮肤色素强硬商标标志，疤痕，肝斑和伸展。

Take advantage of computer to plate technology, the computer will R I p after the Teletext direct output to plate, remove the middle sector of the film to reduce seihan of the appearing in the film, print, developer、Fixer and link, you can significantly reduce the silver, paradioxybenzene, and so on to human health and environmental hazards of the larger liquid waste disposal, as well as UV-on.

利用计算机直接制版技术，通过电脑将R I p 后的图文信息直接输出到印版上，去掉中间环节的胶片，减少制版中胶片输出、显影、定影和晒版等步骤，可以大大减少含银、对苯二酚等对人体和环境危害较大的废液的排放，以及紫外光对人体的伤害。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷