查询词典 sample carrier

This article presents the corresponding measures on the adjustment of samplc pressure,temperature of thermotank ,flowrate of carrier gas,length of measuring cycles and determination of keeping time of sample compositions;the influence of sampling,columns interchange,backflush and time change of compensation valvc to the measurement and analysis and the solutions to bo adopted.

介绍 PGC3 0 2在线气相色相谱仪因原进口色谱柱劣化，换用国产色谱柱后，在调试过程中，样品压力、恒温箱温度、载气流量、测量周期长短、样品各组分保留时间的确定，采样、柱切、反吹、平衡阀门开关时间的改变对测量分析的影响及解决办法。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

The influence of carrier gas pressure and sample exposure time on the analytical signal was investigated.

考察了试液的雾化和曝光时间及载气压力等因素对分析信号的影响。

Economics evaluation:materials(urine glass,test tube,sipper,columnella, kieselguhr),reagent,consumption of instrument(pH meter, GC/MS,carrier gas,heating element,injector,sample injector),service charge, 80.00 yuan totally. Conclusion Compare with the other biology materials,as a study target,urine is easy to get and preserve,otherwise,it also contains several biology information.

共需3小时。经济学评价：取检材材料费(尿杯、试管、吸管、小柱)、检测试剂衍生化试剂、内标、浓盐酸、氢氧化钠、固相萃取材料(硅藻土的费用和仪器的消耗费(pH计、GC/MS、载气、加热器、注射器、微量加样器)，共计八十元左右。

Figure 2 shows a sample spectral mask, 47 CFR 90.210 G, with a normalized X axis to show the offset from the center of the channel and a normalized Y axis to show the unmodulated carrier output.

图2显示一个频谱遮罩的例子，47 CFR 90.210 G，X轴显示距信道中心的偏移量，Y轴显示未调制的载波输出。

objective to determine the contents of residual acetone in acetoacetic ester,the raw material for the synthesis of edaravone, by gas chromatography.methods sample solution was injected on a gdx column (0.18 mm～0.25 mm) with nitrogen as the carrier gas.the residue was calculated by the external standard method.results the linearity was good over the range of 25 μg/ml～400 μg/ml,with the correlation coefficient of acetone being 0.996 and the average recovery 96.8%.conclusions the method was proved to be simple,rapid,practical and highly sensitive.it is an efficient method for the quality control of acetoacetic ester.

摘要］ 目的：用气相色谱法测定依达拉奉合成起始原料乙酰乙酸乙酯中丙酮的残留量。方法：采用固定相为二乙烯苯乙基乙烯苯型高分子多孔小球（直径为0.18 mm～0.25 mm），氮气为载气，用外标法测定乙酰乙酸乙酯中残留丙酮的含量。结果：该方法在丙酮浓度范围在25 μg/ml～400 μg/ml内呈良好的线性关系，响应曲线相关系数为0.996，平均回收率为96.8%。结论：本法简便，快速、实用，灵敏度高，可有效地用于乙酰乙酸乙酯的质量控制。

Objective To determine the contents of residual acetone in acetoacetic ester,the raw material for the synthesis of Edaravone, by gas chromatography.Methods Sample solution was injected on a GDX column (0.18 mm～0.25 mm) with nitrogen as the carrier gas.The residue was calculated by the external standard method.

摘要］ 目的：用气相色谱法测定依达拉奉合成起始原料乙酰乙酸乙酯中丙酮的残留量方法：采用固定相二乙烯苯乙基乙烯苯型高分子孔小球（直径为0.18 mm～0.25 mm），氮气为载气，用外标法测定乙酰乙酸乙酯中残留丙酮的含量。

The FIAlab-2700 is the first commercially available FIA system which offers a four channel syringe pump for aspirating/dispensing carrier, sample, and reagents.

FIAlab-2700 是第一个商业上FIA系统，提供4通道注射器泵浦它提供了载流液，样品，反应剂的抽吸与释放。

Demodulates the FM modulated signal Y at the carrier frequency Fc. Y and Fc have sample frequency Fs. FREQDEV is the frequency deviation of the modulated signal.

Josephus 问题的解答。n个孩子围成圆圈，选任一个数m，从第一个孩子开始数，数到m停止，这个孩子离开，再从第一个开始数，直到剩下一个孩子。

Rather than having the sample dissolved and introduced via a nebulizer and a spray chamber into the ICP, the laser is ablating the sample and a carrier gas transports the ablated material to the ICP.

激光器熔融样品，并通过运载气体将熔融的样品物质传送到IP，而不是将样品溶解后，通过雾化器和雾化室将样品传输给ICP。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。