screening agent

screening agent

[′skrēn·iŋ ‚ā·jənt]
(analytical chemistry)
A nonchelating dye used to improve the colorimetric end point of a complexometric titration; a dye addition forms a complementary pair of colors with the metalized and unmetalized forms of the end-point indicator.
References in periodicals archive ?
If I check my luggage, I place the bells on top so they are immediately accessible to the screening agent.
The amount of sunscreen applied by majority of our study sample was less than what is advised, which if not used in adequate amount can reduce the efficacy of SPF of the sun screening agent used.
This avoids potential embarrassment for both passenger and screening agent while still allowing security personnel to do their job.
Meanwhile, Qantas, an authorized screening agent and issuer of security cards, rejected the TWU's accusations.
The windows are made from extra-thick glass to aid insulation and have a special screening agent within it to prevent energy loss.
Skywest said on Friday (8 July) it had no knowledge of charges it had allegedly incurred at regional airports in Western Australia where Qantas is the designated security screening agent.
This testing indirectly detects hydrolysis of a screening agent by an ESBL by demonstrating potentiation of the activity of a screening agent in the presence of the beta-lactamase inhibitor.
Why not open up the job of rating TV shows to any screening agent group - from the PTA to the Christian Coalition, from the National Rifle Association to the National Organization for Women - that wants to do it?
Individuals seeking year-round skin protection must look for a sunscreen with more than a high Sun Protection Factor (SPF); they must also check sunscreen ingredients for an effective UVA screening agent.
The effective deployment of the screening agent to achieve area coverage on a moving platform remains a difficult problem.
Kaspersky will act as the primary screening agent and qualify all prospects prior to engagement, reducing VAR overhead, while still delivering prospects at original licensing price.
We have seen improvements in the way x-ray pictures are utilised to improve the imagery seen by the airport's screening agent.