Karrer and Enslin reported that the structure of alstyrine S_(19H_(22)N_2, a selenium- dehydrogenation-degradation product obtained by Sharp from the alkaloid alstonine, is identical with that of corynanthyrine,α-[2-(4, 5 diethylpyridyl)]-β-ethylindole, despite the fact that the melting points of these two substances have a 5°difference.

前者的紫外線吸收光譜與阿爾斯泰令(alstyrine，係一種由西阿斯木鹼經硒降解後的產物)的吸收光譜極為類似一级婬片A片AAA毛片；且二者有一種相同的顏色反應日本久久黄色放视频。

The effect of chloride carrier in spectrographic analysis has been investigated with carrier distillation method.

本文報告光譜分析中氯化物載體對雜貭元素譜綫強度的影響。

Low-boiling phenols in low-temperature coal tar are important chemical raw materials. For the identification and determination of the individual phenol boiling below 210℃ in the low temperature coal tar, the methods of gas chromatography, liquid-liquid chromatography followed by ultra-violet analysis and fractional distillation followed by infrared analysis were evaluated and compared.

隨著煤煉油工業(yè)的發(fā)展精品久久久一级毛片，煤焦油中的酚類姐姐直播官网，特別是低級酚，作為化工原料的利用很重要黄片最色软件在线观看入口，我們應用(1)氣液色譜法一级一级α片免费看在钱，(2)液液色譜與紫外光譜法結合及(3)精餾與紅外光譜法結合三種不同方法對210°以前的低級酚進行了各種異構體的成分分析，比較分析結果：三種方法對同一樣品進行分析時韩国最新三级，最大絕對誤差在2％以內色综合视频在线导航，其中以氣液色譜法最為快速，液液色譜法次之色色色.com，精餾-紅外光譜法費時間較多特黄片毛片；但后二種方法所得數(shù)據(jù)較完全。

There are thermoluminescence-photoluminescence meter, high accuracy liquid scintillation counter, hot surface ionizing isotope mass-spectrometer, solid isotope mass-spectrometer, multichannel electro-inductance coupling plasma mass-spectrometer, inert gas mass-spectrometer and their corresponding laboratories.

現(xiàn)擁有熱釋光-光釋光儀日本人妻黄色三级小视频、高精度液體閃射記錄儀年轻人看的黄色视频人妻无码、熱表面電離同位素質譜儀、多通道電感耦合等離子質譜儀和惰性氣體質譜儀等儀器及相應的年代學實驗室国产人人搞人人舔。

absorption line：吸收譜線

absorption coefficient 吸收系數(shù) | absorption line 吸收譜線 | absorption spectrum 吸收光譜,吸收譜

absorption spectrum：吸收光譜,吸收譜

absorption line 吸收譜線 | absorption spectrum 吸收光譜,吸收譜 | accelerate 加速

action spectrum of photosy nthesis：光合作用的作用光譜

光果鳳尾蕉 Cycas thoursii R. Brown; Thouar cycas | 光合作用的作用光譜 action spectrum of photosy nthesis | 光滑角苔 Anthoceros laevis L.; hornwort

spectrum of first order：第一級光譜 =一級光譜

spectroscopy 光譜學= 光譜學,光譜朮 | spectrum of first order 第一級光譜 =一級光譜 | specular reflection 鏡反射 =鏡[面]反射

Selective absorption of radiation and absorbance spectrum：物質對光的選擇性吸收和吸收光譜

7.2.1 Introduction for radiant energy 輻射... | 7.2.2 Selective absorption of radiation and absorbance spectrum 物質對光的選擇性吸收和吸收光譜 | 7.2.3 Absorbing species and electron transition 吸收物質...

spark spectrum：電花光譜= 火花光譜

spark discharge 火花放電 | spark spectrum 電花光譜= 火花光譜 | spark timer 電花計時器 =火花計時器

Laser Spectroscopy：雷射光譜

雷射應用 Laser application | 雷射光譜 Laser spectroscopy | 原子分子物理 Atomic and molecular physics

spectrochemical series：光譜化學序

spectral line<光>譜線 | spectrochemical series光譜化學序 | spectrogram<光>譜圖

method, spectral substraction：光譜差減法 光譜差減法

method, pycnometric 比重瓶法 比重瓶法 | method, spectral substraction 光譜差減法 光譜差減法 | method, system matrix combination method 系統(tǒng)矩陣組合法 系統(tǒng)矩陣組合法

autoionization spectroscopy：自電離能譜學= 自電離光譜學

autoionization 自電離 | autoionization spectroscopy 自電離能譜學= 自電離光譜學 | autoionization state 自電離態(tài)