请问手性柱chiral AS-H，因为做样品时，样品里面有甲苯，但一时大意没看清说明柱子是不能用甲苯的，而...
HPLC Determination of Enantiomeric 2-Azabicyclo[2.2.1] hept-5-en-3-one on Chiral Stationary Phase Complete separation of enantiomers has been achieved on a Chiralcel OD-H analytical column (250 — 4.6 mm) using n-hexane€"isopropanol (80:20, v/v)... Y Zhang,D Yang,S Yao,... - 《...
Developing chiral receptors with an endo-functionalized cavity for chiral recognition is of great significance in the field of molecular recognition. This study presents two pairs of chiral naphthotubes containing a bis-thiourea endo-functionalized cavity. Each chiral naphthotube has two homochiral center...
The interaction of β-cyclodextrin with a series of structurally related chiral thromboxane antagonists was investigated using NMR and RP-HPLC. HPLC studies used both a cyclodextrin bonded phase (Cyclobond I) and β-cyclodextrin as a mobile phase additive with an achiral C8 column. Many of the ...
Methods: Normal phase high performance liquid chromatography was adopted.The DAICEL OJ-H chiral column(4.6 mm×250 mm,5 μm)was adopted with n-hexane-alcohol-diethylamine(90:10: 0.1)as the mobile phase at the flow rate of 1.0 mL·min-1.The wavelength was set at 230 nm,the column ...
(0.2 lm PTFE),prior to HPLC analysis as follows: Daicel Chiralpak ASRH (5 lm, 0.46 · 15 cm) column; 反应由chiral RP-HPLC在岛津LC-10系统跟随: 为氨化物分析,样品被稀释了到0.2-0.5毫米用甲醇并且在 (高性能液体色谱分析之前过滤了)0.2 lm PTFE,如下: Daicel Chiralpak ASRH (5 lm, 0.46 · ...
Exotic physics could emerge from interplay between geometry and correlation. In fractional quantum Hall (FQH) states1, novel collective excitations called chiral graviton modes (CGMs) are proposed as quanta of fluctuations of an internal quantum metric u
The influence on the separations of the spacer length is discussed. The CD-CSPs were evaluated under normal and reversed mode conditions and the results compared with those from two commercial stationary phases containing β-cyclodextrin Chiradex and Cyclobond I....
a, Helical toroid resembles the crystal structure of LH2 and thus is used to co-assemble with a chiral acceptor dye, leading to efficient energy transfer among the two components and circularly polarized luminescence from the acceptor. EnT, energy transfer. b, UV–vis absorption (dashed lines)...
(4.0 mL), −20 °C (3a–3g) or 0 °C (3k–3p), 0.5–30 h. *Isolated yield.†Determined by1H NMR analysis.‡Determined by HPLC with a chiral stationary phase.§Run at room temperature with anhydrous MgSO4(200 mg) as additive.#Run at −15 °C.¶Run at 0...