Sentences with phrase «ionization detector»

Varian 1200L triple quadrupole MS connected to a Varian CP3800 GC equipped with CombiPal autosampler, with SPME (solid phase micro-extraction) capability, and flame ionization detector.

Around 1997 Paul Lecoq started to work on the translational aspect of his research in the field of ionization detectors for calorimetry.

The International Association of Fire Fighters (IAFF) has called the banning of ionization detectors as they are MUCH slower to trip than photo - electrics.

Not exact matches

Ionization alarms respond quickly to flaming fires and photoelectric detectors respond sooner to smoldering fires.

In photoelectron holography, instead of a reference wave there are electrons that fly directly to a detector after the process of tunneling ionization.

Left side: 2D electron momentum map of argon clusters with an average size of 3500 atoms showing a pronounced central distribution attributed to the ionization of Rydberg atoms with the detector field.

Finally, he advises, use a more advanced detector that uses boron or an ionization chamber.

The experiment monitors germanium detectors, cooled to a fraction of a degree above absolute zero, for subtle vibration and ionization effects that would be produced by WIMPs colliding with germanium nuclei.

But a balloon - borne detector flying over Antarctica called the Advanced Thin Ionization Calorimeter (ATIC) has detected 70 more high - energy electrons than the normal background level attributed to supernova blasts.

IP25, tri-unsaturated HBI (HBI - III, Z - isomere41), and sterols were analyzed by gas chromatography (GC) using an Agilent Technologies 7890B (30 m DB - 1MS column, 0.25 mm i.d., 0.25 µm film thickness) coupled to an Agilent Technologies 5977A Extractor mass selective detector (MSD, 70 eV constant ionization potential, Scan 50 — 550 m / z, 1 scan / s, ion source temperature 230 °C, Performance Turbo Pump).

Ionization smoke detectors reportedly take 15 - 30 minutes longer to sound an alert than other alarms.

As a result, the states of Massachusetts, Vermont, and Iowa have banned them, and lawsuits have been filed against manufacturers of ionization smoke detectors, such as Kidde, Inc., BRK Brands, Inc., and USI Electric, Inc..

Ionization smoke detectors have come under fire for allegedly failing to detect slow, smoldering fires in a reasonable amount of time.

For example, while smoke detectors are crucial, ionization smoke detectors can take as much as 30 minutes longer than other alarms to notice smoke.

In its guide to smoke and CO alarms, Consumer Reports issues a challenge to all smoke alarm manufacturers to create «a single device that senses both kinds of fire and CO.» The Nest Protect's Split - Spectrum Sensor purports to cut down nuisance alarms by including a type of ionization sensor, but it isn't a dual detector.

From releasing the first battery powered smoke detector that received an Underwriters Laboratory (UL) listing, to being the first to retail market with a battery - operated smoke alarm, to developing the first dual photoelectric / ionization alarm and beyond, we've had a long legacy of firsts.

There are two main types of smoke detectors: ionization and photoelectric.