Industrial

The 5975 inert MSD – Benefits of Enhancements in Chemical Ionization Operation Technical Note This Technical Note describes the complete integration of chemical ionization (CI) on the 5975 inert MSD (mass selective detector), which now makes all the power of CI mass spectrometry (MS) conveniently available. CI has been fully automated by providing auto-tuning with electronic control of the reagent gases. All modes of MS operation in a single sequence, completely free of operator intervention, are now possible. Analytes can be sensitively determined in samples by implementing alternating positive- or negative-CI (PCI or NCI) modes. On the 5975 inert MSD, CI is as easy as EI (electron impact ionization).

This article presents a method for quantitatively analyzing opiates in urine using liquid chromatography/mass selective detector time-of-flight (LC/MSD TOF). The method utilizes accurate mass measurement to enhance selectivity.

This document describes the analysis method for the pharmaceutical compound clozapine, used for the treatment of severely ill schizophrenic clients. The use of Zorbax SPE C18 EC cartridge significantly reduces levels of interfering substances in the bloodstream, allowing for accurate quantification of clozapine or clozapine-like compounds.

This application note describes a method for the analysis of volatile organic compounds (VOCs) in water samples according to US Environmental Protection Agency (USEPA) method 8260B.

This article introduces the new features of Agilent Technologies, Inc.'s 5973N inert mass spectrometer detector and ChemStation software, which allows for operation of the ion source at higher temperatures, providing improvements in analysis. It also provides advice and examples on how to explore the utility of ion source temperature.

The 74HC/HCT7030 is a 9-bit x 64-word FIFO register with 3-state outputs, supporting synchronous or asynchronous operation.

The PT6300 Series is a line of High-Performance 3 Amp, 12-Pin SIP (Single In-line Package) Integrated Switching Regulators (ISRs) designed to meet the on-board power conversion needs of battery powered or other equipment requiring high efficiency and small size. This high performance ISR family offers a unique combination of features combining 90% typical efficiency with open-collector on/off control and adjustable output voltage. Quiescent current in the shutdown mode is typically less than 100µA.

The PT6300 Series is a line of high-performance, 3-amp, 12-pin SIP (Single In-line Package) integrated switching regulators (ISRs) designed to meet the on-board power conversion needs of battery powered or other equipment requiring high efficiency and small size.

The 74HC/HCT74 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT74 are dual positive-edge triggered, D-type flip-flops with individual data (D) inputs, clock (CP) inputs, set (SD) and reset (RD) inputs; also complementary Q and Q outputs. The set and reset are asynchronous active LOW inputs and operate independently of the clock input. Information on the data input is transferred to the Q output on the LOW-to-HIGH transition of the clock pulse. The D inputs must be stable one set-up time prior to the LOW-to-HIGH clock transition for predictable operation. Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times.

The document introduces the PT6640 series of products, which is a positive input to negative output linear switch regulator. The input voltage range is +8V to +25V, the output voltage is adjustable, and the output voltage is -2.5V/4A to -15V/1.5A. The efficiency is as high as 85% and remote sensing is realized.

74HC/HCT75 Quad bistable transparent latch

A USGS analytical method using gas chromatography/mass selective detector (GC/MSD) was modified and used to identify the source of pesticides and to calculate the pesticide load in river water during storm seasons. The method was validated to cover 12 organophosphate pesticides and 5 pyrithroids. The limits of quantitation for these target compounds are 10–500 ppt using a GC/MSD selected ion monitoring (SIM) method.

The use of a highly inert capillary column can facilitate the quantitation of low levels of very active compounds. The use of the highly inert HP-5MSi column in conjunction with the Agilent 6890/5973 inert gas chromatograph/mass spectrometer (GC/MS) system allows the measurement of pesticides and environmental contaminants at low levels while maintaining response linearity over a wide concentration range.