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- W1967980405 abstract "A liquid chromatographic procedure for the determination of six barbiturates (barbital, diallyl barbituric acid, phenobarbital, butabarbital, amobarbital and pentobarbital) in urine samples is described. The proposed system uses a Spherisorb octadecyl-silane ODS-2 C18 analytical column and a guard column of similar characteristics. The UV detector was set at 240 nm. A study to select adequate composition of the micellar mobile phase for the separation of these compounds in urine samples is performed. Maximum resolution was achieved with a 0.07 M sodium dodecylsulphate-0.3% propanol at pH 7.4 eluent. Limits of detection at 240 nm were ranged between 0.13 μg ml−1 for diallyl barbituric acid and 2.7 μg ml−1 for amobarbital. The procedure allows for the determination of these compounds in 20 minutes, it does not require prior a sample preparation step and it can be very useful to the investigation of intoxication." @default.
- W1967980405 created "2016-06-24" @default.
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- W1967980405 date "1999-11-01" @default.
- W1967980405 modified "2023-10-17" @default.
- W1967980405 title "Determination of barbiturates in urine by micellar liquid chromatography and direct injection of sample" @default.
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- W1967980405 doi "https://doi.org/10.1016/s0731-7085(99)00147-8" @default.
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