Comparison of ALUGRAM Xtra SIL G UV254 and ALUGRAM Xtra SILGUR UV254 for the separation of cinchona bark ingredients

Comparison of ALUGRAM Xtra SIL G UV254 and ALUGRAM Xtra SILGUR UV254 for the separation of cinchona bark ingredients

Comparison of ALUGRAM Xtra SIL G UV254 and ALUGRAM Xtra SILGUR UV254 for the separation of cinchona bark ingredients

Application Number
403650
Method
TLC
Results

Legend:
1 - 2 µL extract 2 - 0.5 µL standard 3 - 4 µL extract

Substances
quinine; further ingredients of cinchona bark
Product(s)
PhaseREFWebshop

Xtra SILGUR UV254

818423

Xtra SIL G UV254

818333

Matrix
cinchona bark
Sample(s)

1 g powdered cinchona bark is extracted with 1 mL ammonia solution (w = 12.5 %) and 5 mL 2-propanol at 60 °C for 10 min

Conditions

Applied volume: see legend Eluent: toluene - diethyl ether - diethyl amine (55:35:10, v/v/v) Migration time: 2 x 10 min, with drying

Detection
after developing and drying, under UV 254 nm
Note
By using the concentrating zone on ALUGRAM Xtra SILGUR UV254 all spots are better focused as on ALUGRAM Xtra SIL G UV254.
Author
TLC department
Source
MACHEREY-NAGEL, Germany 2011
Disclaimer
Concerning questions to literature applications please contact the cited author/s. Chemicals mentioned in applications are not manufactured or sold by MACHEREY-NAGEL. Applications mentioned in MACHEREY-NAGEL literature or databases are provided for informational purposes only. MACHEREY-NAGEL does not warrant that all applications have been tested in MACHEREY-NAGEL laboratories using MACHEREY-NAGEL products. MACHEREY-NAGEL does not warrant the correctness of the applications.
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