方法应用近红外光谱测定技术,对不同胎龄的早产儿进行脑氧合状态的监测,观察声刺激后脑反应性的变化;
Methods The intensity of brain responses after sound stimulation was evaluated by detecting cerebral oxygenation using near infrared spectroscopy (NIRS) in preterm infants.
本文首次合成了几种含苯并呋喃苯并噻吩环的新的芳香族四羰基化合物,并对它们进行了元素分析和红外光谱测定。
Several new bis (1,2-dicarbonyl) compounds containing benzofuran or benzothiophene ring have been synthesized and identified by elemental analysis and Infra red spectroscopy.
本文通过吸附量、红外光谱测定以及捕收剂分子结构计算,系统研究了捕收剂CSU-A与黄铜矿、黄铁矿的作用机理。
The results show that adsorption of collector "CSU-A" on chalcopyrite surface is chemical adsorption and on pyrite surface is physical adsorption.
通过浮选试验,EDS、动电位和红外光谱测定,考察了BK 501抑制剂在一水硬铝石与高岭石反浮选分离中的作用效果和机理。
The effect and mechanism of BK501 depressor in the separation of diaspore from kaolinite by reverse flotation was investigated by flotation test, EDS, electrokinetic potential and infrared spectrum.
本文合成了(S) - 3 -甲基- 1,1 -二苯基- 1,2 -丁二醇,并通过元素分析、核磁共振、红外光谱测定了其结构。
In this paper (s) -3-methyl-1, 1-diphenyl-1, 2-butanediol has been synthesized. The structure is conformed by IR? NMR and element analysis.
从化学计量学角度研究了近红外光谱技术测定儿童高钙奶粉理化指标的原理。
The principle of determining parameters of children high calcium milk powder (CHCMP) by near infrared spectra method is studied.
经熔点测定和红外光谱分析,确证产品是苯酚。
The product was characterized by melt point and IR spectra analysis.
采用红外光谱方法建立快速测定柴油氧化安定性方法。
A fast near infrared spectral method for measuring oxidation content in diesel was proposed.
测定了三个系列玻璃组成红外光谱。
The infrared spectra of three glass compositions have been measured.
采用热失重分析、白度测定、特性粘度、红外光谱(IR)等方法对尼龙12的热氧稳定性进行了研究。
The thermo-oxidative stability of nylon 12 is investigated by infrared spectrum(IR), and by measuring whiteness and inherent viscosity of oxidized nylon 12.
由此可见,用近红外光谱法测定棉籽粉的油分具有与化学法相近的准确性和精确性,可以在实践中应用。
This indicates that NIRS is comparable to chemical methods in both accuracy and prediction and is reliable in practical application.
红外光谱澳化钾压片法,测定胆石中的胆红素钙和胆固醇含量,方法较化学定量法简便,快速。
An infrared spectrophotometric method was used to determine the calcium bilirubinate and cholesterol contents in human gallstone.
利用物理测试方法,如X衍射和红外光谱等方法,测定锆石结构的完整性,进而划分锆石类型。
The completeness of zircon texture is determined by using physical determination method such as X-ray diffraction analysis and infrared absorption spectroscopy so as to divide the types of zircon.
用傅立叶红外光谱仪测定羧基含量。
Determine carboxyl content with Fourier infrared spectrum instrument.
应用OMNI采样器傅里叶变换红外光谱直接测定法鉴别植物样品具有简便、快速和准确的优点。
The identification of plant samples using Fourier transform infrared spectrometer with OMNI collector is simple, convenient, fast and accurate.
利用红外光谱法还可以测定SBS改性沥青中SBS的含量,从而评价SBS改性沥青的技术性能。
The content of SBS in SBS modified asphalt can be determined by infared spectra to evaluate the pavement performance of SBS modified asphalt.
用红外光谱法测定了防蛀剂中对二氯苯和萘的含量。
The p dichlorobenzene and naphthalene in mothproofing agent was determined by infrared spectroscopy.
用红外光谱、核磁共振、元素分析测定了共聚物的结构及组成。
The structure and composition of the copolymer were characterized by IR, NMR and elementary analysis.
通过对化合物的元素分析、红外光谱以及在DMF中紫外吸收光谱的测定,确定了目标分子。
The objective molecule was determined through testing the compound with elementary analysis, IR spectrum and ultra-violet absorption spectrometry in DMF.
通过溶胀曲线测定、红外光谱分析、复阻抗分析等手段对材料的结构与离子导电性能进行了研究。
Tests of swelling curves, infrared spectra analysis and complex impedance analysis were carried out to understand structure and ionic conductive properties of the samples.
用氟硅酸铵对HMCM-22分子筛进行了改性处理,并采用氨程序升温脱附和吡啶吸附红外光谱法测定了其酸性。
HMCM-22 zeolite was modified with ammonium hexafluorosilicate and characterized by temperature-programmed desorption of ammonia and pyridine adsorption infrared spectroscopy.
本实验探讨利用近红外光谱分析技术(NIRS)测定鱼丸弹性的可能性,并建立数学模型。
The present work aimed to evaluate the ability of near infrared spectroscopy(NIRS) in predicting the springiness of fish-balls.
干电池经不同方式放电后的负极反应产物物相,用X射线衍射和红外光谱进行了测定和研究。
An experimental study was made on the products of anode reaction in zinc manganese dioxide dry cells after different types of discharge using X-ray powder diffraction and infrared spectrum.
结果表明,不同品牌的圆珠笔字迹的红外光谱是不同的,零时测定和三个月测定的红外光谱也是不同的。
The result is showed that the most of IR spectra of different ball pen are different and the IR spectra got in no time and in three month time are different.
用凝胶色谱法估测了其分子量、用化学滴定法和红外光谱法测定了其水解率。
Molecular weight was obtained by GPC, hydrolyzed ratio was determined by neutralization titration and infrared spectrometry.
介绍了用近红外光谱法对重整生成油的苯含量进行快速测定的方法。
A rapid method for determining benzene contents in reformate by Near Infrared Spectroscopy is described in this paper.
用光谱仪测定多孔玻璃的紫外可见近红外光谱,对光谱透过率与浸析效果之间的关系作了定性分析。
The relationship between the transmittance and leaching effect of the glasses was discussed by measuring UV VIS NIR spectrum.
红外光谱法初步测定了活化条件对其表面基团的影响。
Infrared spectroscopy was also used to determine the effect of activation condition on surface group of activated carbon.
红外光谱法初步测定了活化条件对其表面基团的影响。
Infrared spectroscopy was also used to determine the effect of activation condition on surface group of activated carbon.
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