In this paper,the Illilium verum Hook.f.grow at mountain of Dayao of Jinxiu in Guangxi,Volatile oil was extracted by soxhet method and steam distillation.All the volatile oil was analyzed by GC-MS,the result show the ...In this paper,the Illilium verum Hook.f.grow at mountain of Dayao of Jinxiu in Guangxi,Volatile oil was extracted by soxhet method and steam distillation.All the volatile oil was analyzed by GC-MS,the result show the ingredients and rate of product were change greatly,The major chemical constituents were trans-anethole,estragole and anisaldehyde etc.展开更多
The volatile oil was extracted from Curcuma longa and Turmeric oleoresin by Soxhelt method with petroleum ether.All the volatile oil was analyzed of chemical component by the method of GC-MS,the relative contents of t...The volatile oil was extracted from Curcuma longa and Turmeric oleoresin by Soxhelt method with petroleum ether.All the volatile oil was analyzed of chemical component by the method of GC-MS,the relative contents of these compounds were calculated using square peaks to normalization.On the volatile oil of Curcuma longa 35 peaks were separated and 21 compounds were identified,which accounted for 89.10%,the main chemical constituents was (-)-Zingiberene(22.12%),β-Sesquiphellandrene(15.24%),α-Turmerone (11.30%),β-Turmerone (8.87%),Ar-turmerone(8.20%),but on the volatile oil of Turmeric oleoresin 32 peaks were separated,of which 21 compounds were identified,which accounted for 90.12% the main chemical constituents was (-)-Zingiberene(23.92%),β-Sesquiphellandrene(15.73%),Ar-turmerone(12.89%),β-Turmerone(10.85%).展开更多
With the technology of IR spectrum and crystal morphology,studying the effect on interatomic bonding action and molecular shape of coagulating agent PASC when it is prepared by various methods.It shows that as PASC is...With the technology of IR spectrum and crystal morphology,studying the effect on interatomic bonding action and molecular shape of coagulating agent PASC when it is prepared by various methods.It shows that as PASC is produced by basifying polymerization,comparing to that by others way,the IR spectrum of PASC shows,965cm -1 peak proportion reflecting Si O Al bond accrete 118%,266%,875cm -1 peak proportion reflecting Al O Al bond accrete 23%,30%.It may be caused by multinuclear hydroxy aluminum’s content and Zeta electric potential increases in the process hydrolyze concrete with PASC.It disappear in crystal morphology,molecular chain is longer and branching further,so that PASC have better potentiality of arching and charge neutralization.展开更多
Pregna-3,6,20-trioxime and its analog,pregna-6,20-dione-3-oxime were synthesized from pregnenolone by the oxidation of PCC,reduction of NaBH4,oxidation of Jone’s agent and oximation in four-step reaction.Their struct...Pregna-3,6,20-trioxime and its analog,pregna-6,20-dione-3-oxime were synthesized from pregnenolone by the oxidation of PCC,reduction of NaBH4,oxidation of Jone’s agent and oximation in four-step reaction.Their structures were characterized by NMR and IR.展开更多
文摘In this paper,the Illilium verum Hook.f.grow at mountain of Dayao of Jinxiu in Guangxi,Volatile oil was extracted by soxhet method and steam distillation.All the volatile oil was analyzed by GC-MS,the result show the ingredients and rate of product were change greatly,The major chemical constituents were trans-anethole,estragole and anisaldehyde etc.
文摘The volatile oil was extracted from Curcuma longa and Turmeric oleoresin by Soxhelt method with petroleum ether.All the volatile oil was analyzed of chemical component by the method of GC-MS,the relative contents of these compounds were calculated using square peaks to normalization.On the volatile oil of Curcuma longa 35 peaks were separated and 21 compounds were identified,which accounted for 89.10%,the main chemical constituents was (-)-Zingiberene(22.12%),β-Sesquiphellandrene(15.24%),α-Turmerone (11.30%),β-Turmerone (8.87%),Ar-turmerone(8.20%),but on the volatile oil of Turmeric oleoresin 32 peaks were separated,of which 21 compounds were identified,which accounted for 90.12% the main chemical constituents was (-)-Zingiberene(23.92%),β-Sesquiphellandrene(15.73%),Ar-turmerone(12.89%),β-Turmerone(10.85%).
文摘With the technology of IR spectrum and crystal morphology,studying the effect on interatomic bonding action and molecular shape of coagulating agent PASC when it is prepared by various methods.It shows that as PASC is produced by basifying polymerization,comparing to that by others way,the IR spectrum of PASC shows,965cm -1 peak proportion reflecting Si O Al bond accrete 118%,266%,875cm -1 peak proportion reflecting Al O Al bond accrete 23%,30%.It may be caused by multinuclear hydroxy aluminum’s content and Zeta electric potential increases in the process hydrolyze concrete with PASC.It disappear in crystal morphology,molecular chain is longer and branching further,so that PASC have better potentiality of arching and charge neutralization.
文摘Pregna-3,6,20-trioxime and its analog,pregna-6,20-dione-3-oxime were synthesized from pregnenolone by the oxidation of PCC,reduction of NaBH4,oxidation of Jone’s agent and oximation in four-step reaction.Their structures were characterized by NMR and IR.
