查询词典 furoic

The solid-phase microextraction technique was evaluated for the determination of furoic acid and creatinine in urine. For furoic acid, the alkaline hydrolysis step was first performed to hydrolyze the furoic acid-glycine conjugate to free furoic acid.

本研究利用固相微萃取(solid-phase microextraction， SPME)动与气相层析质谱仪之结合，建立尿中呋喃甲酸与肌酸酊的分析技术，以提供评估呋喃甲醛暴露之生物侦测工具。

The hydrogenation and methyl esterification of furoic acid over Pd-Ni/γ-Al2O3 catalysts was investigated in fixed bed micro-reactor under different conditions such as reaction temperature,pressure,H2 space velocity,space velocity of furoic acid and methol,ratio of H2 and furoic acid and so on.

以糠酸、甲醇、氢气为原料，采用连续流动固定床微反应器，Pd-Ni/γ-Al2O3为催化剂，使糠酸一步加氢甲酯化生成α-四氢糠酸甲酯。

The hydrogenation and methyl esterification of furoic acid over Pd-Ni/γ-Al2O3 catalysts was investigated in fixed bed micro-reactor under different conditions such as reaction temperature,pressure,H2 space velocity,space velocity of furoic acid and methol,ratio of H2 and furoic acid and so on.

以糠酸、甲醇、氢气为原料，采用连续流动固定床微反应器，Pd-Ni/γ-Al2O3为催化剂，使糠酸一步加氢甲酯化生成α-四氢糠酸甲酯。研究了反应的温度，压力，气、液体流速，进料流量等因素对催化反应的影响。结果表明：在1.5MPa，250℃，氢气空速3300 h-1，液体空速3.0 h-1(氢油比为50)时，糠酸转化率为96.6%，四氢糠酸甲酯的选择性97.2.0%，产率94.0%。催化剂稳定性较好，连续运转280小时后未见活性下降。该反应体系活性高，选择性好，反应压力低，催化剂性能稳定，操作简单，产物易分离

Half-micro-quantum experiment on synthesis of furfuryl alcohol and furoic acid ;2. The silver oxide catalytic oxidation of furfurol in manufacturing furoic acid was improved.

2呋喃甲酸是糠醛在人体中的代谢产物，可做为防腐剂、熏蒸剂等，本文报道[Nd(C4H3OCOO)2·NO3·C10H8N2]2配合物的合成和单晶X射线衍射分析结果。

A new method employing furoic acid and the n-butanol to synthesize the furoic acid-n-butyrate flavor has been reported in this paper.

以糠酸和正丁醇为原料，改性钼镍粉作催化剂取代以往常用的硫酸作催化剂，合成糠酸正丁酯香料。

The toxicity of several similar structural compounds with HT-toxin such as furamethanol, furancarboxaldehyde and furoic acid to corn was tested, and the results showed that the toxicity of furoic acid was highest among them, and in turn followed by furancarboxaldehyde and furannethanol.

对与组分Ⅰ有类似结构的几种物质进行毒性比较的结果发现，呋喃甲酸对玉米的毒害作用最强，其次依次是呋喃甲醛和呋喃甲醇，指出该毒素随着不断氧化毒性会有增强。

Supported noble metallic catalysts were prepared with different kind of noble metals and of supports,their catalytic performance for furoic acid hydrogenation were investigated in fixed bed micro-reactor in water under different conditions such as reaction pressure,temperature,H2 space velocity,space velocity of furoic acid and solvent and so on.

采用水作溶剂的固定床操作系统，用钌、铑、钯、铂等作为担载金属，氧化硅、活性炭、γ-三氧化二铝等作为载体，制备了多种负载型催化剂，评价了它们的糠酸选择性杂环加氢催化性能。

Under the optimal reaction conditions of 0.5MPa pressure, at 150℃, H2 gas flow rate of 5000 mLh^(-1) and liquid flow rate of 5.0mLh^(-1), the conversion of furoic acid, selectivity to methyl tetra-hydro-furan formiate and yield of methyl tetra-hydro-furan formiate can reach 99.0%, 98.2% and 97.2%, respectively.

结果表明：在0.5MPa，150℃，氢气流速5000mLh^(-1)，液体流速5.0mLh^(-1)（氢油比为50）时，呋喃甲酸转化率为99.0%，四氢糠酸甲酯的选择性98.2%，产率97.2%。

Effects of the reaction temperature, pressure, gas flow rate of H2, liquid flow rate of furoic acid and methol were studied.

研究了反应的温度、压力、气、液体流速等工艺条件对糠酸杂环选择性催化加氢甲酯化过程的影响。

Compared with other techniques, the study shown here provided a simple, fast and reliable method for the analysis of furoic acid and creatinine in urine.

与现有方法相比较，本研究能有效缩短样本前处理及分析时间并减少溶剂的使用，且与肌酸酐现有分析方法的平行比对亦具有一致性。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？