草酸

Kenaf phloem bundle fiber layers were separated with a acidified sodium chlorite treatment with an additional ammonium oxalate treatment.

采用亚氯酸钠冰醋酸和草酸铵处理，将不同部位的红麻韧皮部束纤维进行分层，并-测定各束纤维层的纤维细胞长度，探讨红麻韧皮部纤维细胞长度的分布规律。

Ammonium oxalate may obviously inhibit the frequency, scope and duration of the epileptic discharge. It has obviously effects on protecting neurons in hippocampus of epilesy rats caused by penicillin.

草酸铵能抑制癫痫大鼠的痫样放电频率、幅度和总时间，能明显抑制海马区锥体层细胞坏死，对癫痫所致的脑部损伤有缓解作用。

Methodspolysaccharides a was extracted and purified through 0.5% ammonium oxalate and ethanol precipitation, the content was determined by phenol-sulfuric acid under 485 nm.

方法采用0.5%草酸铵溶液提取、醇沉的方法分离纯化大蒜多糖组分a，以苯酚-硫酸显色法测定大蒜多糖组分a的含量。

Ammonium oxalate among the used nitrogen-containing compounds had the most remarkable effect on the production of ligninolytic enzymes but no stimulating effect on the production of xylanase and cellulases by P.

研究发现在几种含氮化合物中，草酸胺对P 。conchatus产木素降解酶的促进作用最显著，而对半纤维素酶，纤维素酶的产生促进作用不明显，在整个培养过程中，微晶纤维素酶活力都未检测到，CMC酶活力也较低。

Photodegradation of a basic anion dye-fuchsin basic by using ammonium ferric oxalate and H2O2 as a mediator in an aqueous medium was investigated.

研究了用UV/草酸高铁铵／H2O2体系光降解一种碱性阳离子染料－碱性品红。

The mobile phase was 0.1 mol/L ammonium oxalate + N,N-dimethylformamide + 0.2 mol/L diammonium phosphate (75+15+10, by vol) adjusted to pH 8 by aqueous ammonia. Column temperature was 30℃, flow rate was 0.8 ml/min, and detection wavelength was 365 nm.

使用C18反相柱和二极管阵列检测器，以0.1mol/L草酸铵溶液+二甲基甲酰胺+0.2mol/L磷酸氢二铵溶液=75+15+10(用氨水调pH值至8.0左右)为流动相，柱温30℃，流速0.8ml/min，检测波长365nm，外标法对水合霉素的有效成分进行定量分析。

The experimental results indicates that the optimum pH range was 1.60~2.20, and the optimum H2O2 concentration was 10.0 mmol/L. The degradation ratio increased with the increasing concentration of ammonium ferric oxalate in the range from 0.1 to 1.0 mmol/L, but no significant increase in degradation ratio was observed when the concentration was above 1.0 mmol/L. When the concentration of fuchsin basic increased, the degradation ratio dropped, while the concentration of degraded fuchsin basic rised. When the concentration of fuchsin basic was low, the degradation followed first-order kinetics, but when it was high, the degradation could be fitted by zero-order kinetics. The absorbtion of fuchsin basic at 543 nm disappeared quickly, while the absorbtion of intermediates formed during the course of fuchsin basic dagradation at 298 nm vanished slowly.

试验结果表明：碱性品红降解的最佳初始pH为1.60~2.20，最佳初始H2O2浓度为10.0mmol/L；草酸高铁铵的浓度在0.1~1.0mmol/L时，碱性品红的降解率随浓度的增大而增大；高于1.0mmol/L时，则降解率相差不大；碱性品红的初始浓度增大，降解率减小，而实际降解的浓度则增加；碱性品红的浓度在低和高时，降解动力学过程不一致；随降解的进行，碱性品红在可见光区的吸收峰迅速消失，而降解过程中形成的中间产物吸收峰却消失很慢。

In this ***,nano-particles of NiCuZn ferrites powders were prepared with nickel nitrate,zinc sulfate,copper sulfate and ferrous sulfate as starting materials and ammonium oxalate as the precipitator by employing co-precipitation technique using oxalate precursors.Excellent composition uniformity NiCuZn ferrite powder can be obtained after drying and calcination.Toroidal samples were obtained after being formed and sintered.

本文以硫酸镍、硫酸铜、硫酸锌、硫酸亚铁和草酸铵为原料，应用化学共沉淀法制得分布均匀的先驱粉，经烘干、煅烧制成成分均匀性极佳的NiCuZn铁氧体粉末，再经成形和烧结等工艺，最后制得环形NiCuZn铁氧体材料。

Compared with the control, the percentages of living microorganisms on the biomembrane were 27.6, 14.1 and 0.01, respectively, after extracted by hydroxylamine hydrochloride （0.01mol·L^-1 NH2OH·HCl ＋ 0.01mol·L^-1 HNO3 ）, sodium dithionite （ 0.4mol·L^-1 Na2S2O4, pH 6.0 ）, and acidified ammonium oxalate.

经0.01mol·L^-1 NH2OH·HCl＋0.01mol·L^-1 HNO3、0.4mol·L^-1 Na2S2O4（pH6.0）和0.2mol·L^-1草酸氨（pH4.0）萃取后存活的微生物总量分别下降到原膜的27.6％、14.1％和0.01％；经15％HNO3萃取后，膜上只有极少数的细菌存活；而经H2O2／HNO3萃取后则无细菌存活、原生动物和藻类存活，说明选择性化学萃取剂的使用影响生物膜的活性。

Remove paint or asphalt etc besmirch, still with 10-20% of ammonia or ammonia use 2% of borax solution soaking, to dissolve again after washing.

白色棉及与棉混织的织品沾上铁锈，可取一小粒草酸放在污渍处，滴上些温水，轻轻揉擦，然后即用清水漂洗干净。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。