retention time


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Related to retention time: Retention factor

retention time

[ri′ten·chən ‚tīm]
(analytical chemistry)
In gas chromatography, the time at which the center, or maximum, of a symmetrical peak occurs on a gas chromatogram.
(electronics)
The maximum time between writing into a storage tube and obtaining an acceptable output by reading. Also known as storage time.
References in periodicals archive ?
Even though the method was developed for amino acids, we did not detect interference or overlapping peaks from dipeptides with retention times or m/z values similar to those of amino acids (Gin, Gly-Ala, Ala-Gly; Asn, Gly-Gly) at concentrations 2 400 times higher than the potential soil solution concentrations of amino acids and dipeptides (20 [micro]mol [L.sup.-1] injected on the column) (Jamtgard et al.
TCA not only improves peak shape and retention time of TBM but also increases MS signal intensity of TBM.
For the hydraulic retention time of 24 h, the removal of chlorpyrifos was below to the detection limit (10 [micro]g [L.sup.-1]), implying an efficiency greater than 99% for the [CW.sub.C], [CW.sub.M], [CW.sub.K] and [CW.sub.T].
By obtaining each LogD value for each compound and its experimental value of the retention time obtained through the chromatogram, a regression was performed and the characteristic equation of each chromatogram was obtained.
If these are updated annually, the schedule could delete the term "superseded" and add one year to the desired retention time since the revised and updated policies are essentially new records.
The retention times of PHZ, PCA and PYO were detected from the standard as well as from samples at 41.896, 39.764 at 250 and 34.895 min at 262 nm respectively (Figs.
Damage or loss of the whip antennas was common in our study, and the likelihood of damage occurring increased dramatically with increasing retention time. Baker (2006) reported similar rates of antenna damage (61%) for ATS model 3530.
Together with the long retention time, the established three-dimensional mixing principle of the BHS-Sonthofen twin-shaft mixer makes an important contribution to achieving good results: The lime is mixed intensively with the clay so that the treated clay reliably separates from the rock.
In all the retention time periods the maximum biogas production, degradation of TS as well as VS was observed in the digester -4 (70% CD + 30% PW).