Agilent Manuals

The document describes a drug called Verapamil, which is a calcium antagonist used to treat hypertension, cardiac arrhythmia, and angina pectoris. The drug also shows some prophylactic effects against migraines.

The four antiarrhythmic drugs, quinidine, disopyramide, procainamide and its metabolite N-acetylprocainamide are separated by HPLC using gradient analysis on a reversed phase column and UV detection. The method is accurate and reliable, and can be used for the determination of these drugs in biological fluids.

This document describes a GC/MS method using RTL technology that allows for the analysis of 567 of the most common pesticides and endocrine disrupters used worldwide. By utilizing the RTL functionality with the 6890/5973 GC/MSD system, a new database containing mass spectra and compound retention times has been developed. When combined with the compound screening tools in the MSD Productivity ChemStation software, data files can be easily, accurately, and quickly screened for the presence of any of the 567 compounds listed in the database. Additionally, the software features enable the detection of compounds that may usually be masked by others.

Electron capture negative chemical ionization mass spectrometry is used to analyze cannabinoids in biological matrices.

This Application Note shows three system configurations for recovery collection with the Agilent 1100 Series purification system1,2. One configuration uses a 12-position/13-port valve 3 in the waste line of the fraction collector, which offers up to twelve recovery locations. Another possibility is to use a third-party fraction collector, controlled by the ChemStation through external contacts using a BCD board. The most sophisticated approach, however, is to use a dedicated Agilent 1100 Series fraction collector, which gives complete recovery location tracking with the graphical user interface of the software or in the reports.

The document describes the features and characteristics of some plant growth regulators, including the types and mechanisms of plant hormones.

This document describes the features and characteristics of Agilent CombiZorb Scavengers, including non-swelling, broad solvent compatibility, no metal content, and no static electricity.

Agilent CombiZorb scavengers are used to remove unwanted components from combinatorial chemistry reaction mixtures.

This document introduces the mass analysis principles and features of the 5973N high resolution mass spectrometer, including electron bombardment ionization and chemical ionization.

This document introduces a HPLC method for the determination of atropine in Belladonna extract.

This document describes the analysis method for rhein and emodin in rhubarb root extract. The extract has a gentle laxative effect by stimulating the secretion of bile into the intestines and expelling toxic waste matter through the gall duct, thereby cleansing the liver and relieving chronic liver problems.

This document introduces the HPLC analysis method for androgen drugs

The document describes two antihypertensive drugs: captopril and enalapril. They lower blood pressure by inhibiting the enzyme that converts angiotensin I into angiotensin II. The document also provides a method for analyzing these two drugs using high-performance liquid chromatography.

This document introduces the application of HPLC technology in the analysis of hypnotic drugs, including separation methods, instrument conditions, etc.

The document describes the HPLC analysis method for quinine and quinidine in cinchona bark extract. The cinchona bark contains 4-12% alkaloids, mainly the diastereomers quinine/quinidine and cinchonine/cinchonidine. Quinine is the major compound accounting for 80% of the total alkaloids in cinchona bark. It is a strong protoplasmic poison with effects on almost any cell. Quinine is used as an anti-malaria medicine. Some soft drinks, such as tonic water, contain up to 80 mg/l of quinine, which gives them a bitter taste.