载气流速

稀土元素的氧化物离子产率随入射功率和采样深度增加，载气流速减小而降低。

Oxide ion yield of the rare earth elements ( REE ) decreased with the increasing of RF power and the sampling depth , or with the decreasing of carrier gas flow rate .

对气相色谱和原子荧光的在线联用进行了设计，优化了进样口温度、载气流速、尾吹气流量及氩气流量等实验条件。

The hyphenation system was carefully designed and the operation ( conditions ) such as injector temperature , carrier gas flow rate , make-up gas flow rate and argon flow rate were optimized in detail .

结果表明，K1受色谱柱填料、长径比和样品量影响较大，载气流速影响不明显，柱温的影响与色谱柱的填料有关。

The results show that the chromatographic column packing , column length and sample volume affect K1 greatly , but the carrier-gas flow not evidently .

方法GC法：色谱柱以聚乙二醇（PEG）-20M为固定相，涂布浓度10%，检测器FID，柱温100℃，载气流速1.0mL/min；

Methods In GC procedure the chromatographic column was PEG-20M ( 10 % ), detector was FID , the column temperature was 100 ℃, and the flow velocity was 1.0mL/min .

经研究得出，用PEG6000、DNPandSiliconeSE-30做固定相，载气流速设为10~100mL/min，对于过氧化物的分解没有影响。

Column packing of PEG 6000 , DNP and Silicone SE-30 and the flow rate of carrier gas in : 10-100 mL / min had no effect on decomposition of the peroxides .

实验结果显示：当催化剂粒度为40～60mesh、程序升温速率为15℃min、载气流速为60mLmin、催化剂填量为010g时，适宜进行NH3-TPD实验。

The results show that the conditions of 40 ~ 60 mesh of catalyst particle , 15 ℃ / min of temperature-programmed rate , 60 ml / min of flow rate of carrier gas and 0.10 g of filled amount of catalysts are suitable for the NH_3-TPD experiment .

载气流速为3L/min；

Flow capacity of carrying gas was 3L / min ;

该文章讨论了一些包括柱温、载气流速、进样温度、分流比和进样量等重要因素。

Important parameters identified include column temperature , carrier gas flow-rate , injection temperature , split ratio and sample size .

在调节气相色谱仪器的诸多性能时，电子压力控制技术能精确控制载气流速。

During optimizing gas chromatography performance , the flow rate of carrier gas could be accurately adjusted by electronic pressure control ( EPC ) system .

结果表明，平均传热膜系数随着载气流速的增加而增大，载气流速较小时，平均传热膜系数增加较大；

The results show that the average heat transfer coefficients increase with increasing the air velocity , decrease with increasing the CMC concentrations and the vacuum .

目前国内外对高电场中离子扩散、载气流速分布对离子运动行为的影响进行了大量的研究，取得了一定的研究成果。

Recently , the research of the dependence of ion movement on ion diffusion and carrier gas velocity distribution in high strength electric field has achieved preliminary results .

实验结果表明，在适当的色谱柱、载气流速、检测器等仪器工作条件下，利用气相色谱可以高效、经济、准确的检测煤层瓦斯中的氢气和氦气，适于向现场推广；

The gas chromatography may be in the high efficiency , economy and exact examination for hydrogen and helium in coal bed gas , which fits to the field spreading .

并对色谱柱、载气流速、柱温溶剂、进样量等色谱条件的选择，以及试样与溶剂的体积比的选择进行了实验。

The selection of chromatographic column , flow rate of carrier gas , column temperature , solvent , sample size and the column ratio of sample and solvent were experimented .

研究了重量空速、反应温度、载气流速、反应时间等工艺条件对甲苯、甲醇在碱性沸石上侧链烷基化反应的影响。

Effects of reaction conditions , including WHSV , reaction temperature , N_2 content and time on stream , were studied on side chain alkylation of toluene with methanol over basic zeolite catalysts .

结果表明，载气流速、柱温、程序升温速率、起始温度维持时间和进样量对对映体在β-CD上的分离有明显影响；

The results showed that the factors such as velocity of carrier gas , column temperature , rate of programmed temperature , time of initially maintained temperature and injected sample amount were remarkably influenced the resolution .

解吸试验研究了实验条件对活性炭解吸试验的影响，考察了微波功率、微波加热时间、载气流速等对活性炭的影响，并提出最优试验操作条件。

Desorption test investigate the influence of the test condition to activated carbon adsorption test , Seeing about the influence factor of the microwave power 、 the calefaction time of microwave 、 the flow velocity of carry gas .

在气相色谱网络化虚拟仪器和虚拟实验室中，根据色谱柱效与载气流速及柱温之间的关系，以醇系物为考察对象，构建了不同分析条件下保留参数的预测模型；

In GC VI and VL , according to the relationship between the alcohols retention parameters and the flow rate of carrier gas as well as column temperature , a predicted model of alcohols retention parameters in different experimental conditions is constructed .

通过对色谱柱的种类、柱温和载气流速的优化，以及对保留时间的理论预测，得到了甲醛、乙醛、甲醇、乙醇、1,3丁-二烯、苯等非常规排放物的最佳色谱分离条件。

The optimum separating condition for formaldehyde , acetaldehyde , methanol , ethanol , benzene and 1,3-butadiene was obtained by a series of optimizing experiments on the type of chromatography column , column temperature and flow velocity of carrier and theoretical prediction on retention time .

从预柱出口到检测器之间的阻尼柱阻力6倍于分析柱阻力，反吹后因载气流速提高5.4倍而有效地压缩了谱带，提高芳烃等目标组分的检出灵敏度2倍。

The resistance of the resistor after the pre-column is designed 6 times higher than that of analytical column , resulting in 5.4 times higher carrier gas flow rate after backflushing . The chromatographic bands are compressed , enhancing the sensitivity 2 times more for aromatics and heavier saturates .

用日本岛津GC-9A色谱仪，以氢为载气，流速为50ml/min，不锈钢色谱柱（？）

A GC-9A chromatography ( Shimadzu , Japan ) is used . Hydrogen is employed as the carrier gas . The flow rate is 50ml / min.

本文以活性炭吸附丝采集永芳F真珠膏的挥发性组份，用GC－9A气相色谱仪进行测定。用日本岛津GC-9A色谱仪，以氢为载气，流速为50ml/min，不锈钢色谱柱（？）

The volatile compounds of " YongFang F pearl cream " were absorbed by coated wire , and analyzed by GC-9A chromatography . A GC-9A chromatography ( Shimadzu , Japan ) is used . Hydrogen is employed as the carrier gas . The flow rate is 50ml / min.

同样的载气的流速也会影响保留时间，从而影响峰高。

Similarly the carrier gas flow affects the retention time and consequently the peak height .

在气相色层分析期间，影响化合物的分离因素有液相的选择，柱温，载气的流速。

Among the factors that influence the separation of compounds by gas chromatography are selection of liquid phase , column temperature , and flow rate of carrier gas .

载气：氮气，流速：4.0mL·min-1；

Carrier gas : nitrogen ;

混合固定液柱分离各种杂质的操作条件是：柱温70℃，柱长3米，载气为氮，流速60毫升/分。

The operating conditions of such mixed substrate column are : column length 3 metres , column temperature 70 ℃, nitrogen as carrier gas , flow rate 60 ml / min.

方法色谱柱为5%DEGS柱，检测器温度为220℃，载气为氮气，流速为30ml/min。

METHODS : The separation was performed on 5 % DEGS column with detector temperature at 220 ℃ and flow rate at 30ml / min , nitrogen gas was used as carrier .

方法色谱柱为DB-WAX毛细管柱，柱温采取程序升温，进样口及检测器温度为250℃，载气为氮气，流速为1ml/min，分流比为25∶1，内标为正辛醇。

The column temperature was increased by programming with the sample entrance and detector being at250 ℃ . The carrier gas was nitrogen . The flow rate was1ml / min and shunting ratio was25 ∶ 1.N-octyl alcohol was used as internal standard .

使用的载气为H2、N2和Ar，示踪气体为甲苯，载气流速变化为0.5&10cm/s。

The carrier gas used is H_2 , N_2 or Ar and tracer is toluene . The linear velocity of carrier gas varies from 0.5 cm / s to 10 cm / s.