Analysis of basic compounds in urine by on-line extraction-HPLC-DAD

نویسندگان

  • Lena Schönberg
  • Thomas Grobosch
  • Dagmar Lampe
  • Charlotte Kloft
چکیده

An automated, qualitative screening HPLC method for the identification of basic compounds in urine has been established. A 1-ml volume of urine was extracted by on-line extraction and separated on two coupled strong cation-exchange columns under isocratic conditions. The use of the photodiode-array detector (DAD, = 190370 nm) gave access to a library of > 2600 toxicologically relevant compounds. The validated method is reliable, simple and in addition successfully proven with the analysis of real biological specimen for the routine use.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

New Automated Screening System for the Determination of Basic Compounds in Urine by On-Line Extraction-HPLC- DAD

A new automated, qualitative screening HPLC method for the identification of basic compounds in urine has been established. A 1-ml volume of urine was automatedly extracted online and separated on two coupled strong cation-exchange columns under isocratic conditions. The use of the photodiode-array detector (DAD, λ=190-370 nm) gave access to a library of more than 2600 toxicologically relevant ...

متن کامل

Extraction and Determination of Cyproheptadine in Human Urine by DLLME-HPLC Method

Novel dispersive liquid-liquid microextraction (DLLME), coupled with high performance liquid chromatography with photodiode array detection (HPLC-DAD) has been applied for the extraction and determination of cyproheptadine (CPH), an antihistamine, in human urine samples. In this method, 0.6 mL of acetonitrile (disperser solvent) containing 30 µL of carbon tetrachloride (extraction solvent) was ...

متن کامل

Extraction and Determination of Cyproheptadine in Human Urine by DLLME-HPLC Method

Novel dispersive liquid-liquid microextraction (DLLME), coupled with high performance liquid chromatography with photodiode array detection (HPLC-DAD) has been applied for the extraction and determination of cyproheptadine (CPH), an antihistamine, in human urine samples. In this method, 0.6 mL of acetonitrile (disperser solvent) containing 30 µL of carbon tetrachloride (extraction solvent) was ...

متن کامل

Simultaneous Determination of in Total Seventeen Opium Alkaloids and Opioids in Blood and Urine by Fast Hplc-dad-fl Detection, after Solid-phase Extraction

A fast liquid chromatographic method with tandem diode array-fluorescence detection for the simultaneous determination of in total seventeen opium alkaloids and opioids is presented. Blank blood and urine samples (1 mL) were spiked with different concentrations of a standard mixture, as well as with the internal standard, butorphanol (200 ng/mL). After solid-phase extraction, based on weak cati...

متن کامل

Automated Quantification of Doxylamine and Diphenhydramine in Human Plasma using on-line extraction-HPLC-DAD (TOX.I.S.)

Aim: The purpose of this study was to develop a screening method for the identification of weak basic, neutral and weak acidic substances in human plasma using on-line extractionHPLC-DAD (TOX.I.S. toxicological identification system). Beside the identification of xenobiotics, the method was validated for the automatic quantification of two compounds in human plasma: doxylamine (DA) and diphenhy...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007