Cited by 217Electrochemical Analysis and ApplicationsForensic Toxicology and Drug AnalysisElectrochemical sensors and biosensors

In vivo calibration of microdialysis probes for exogenous compounds

Menacherry, Stanley., Hubert, Walt., Justice, Joseph B.·1992·Analytical Chemistry

Abstract

Several approaches for calibrating microdialysis probes for exogenous compounds in vivo are described which avoid the error introduced by in vitro calibration. These methods are based on establishing a steady state of the exogenous compound by a continuous (zero-order) iv infusion. The steady-state concentration is estimated by three methods that directly determine the in vivo concentration. The methods are (a) extrapolation of dialysate concentrations at various flow rates to the concentration at zero flow, (b) dialysis with concentrations of analyte added to the perfusion medium above and below the expected concentration to determine the concentration at no net flux across the membrane, and (c) dialysis at a very slow perfusion rate (57 nL/min) where the recovery is expected to be better than 90%. Using these approaches, the recovery for cocaine in the brain was found to be (8.9 +/- 0.68)%, as compared to an in vitro recovery of (5.1 +/- 0.18)% at 24 degrees C and (7.4 +/- 0.18)% at 37 degrees C, at a perfusion rate of 1.2 microL/min through a 0.3- X 2-mm microdialysis probe. The in vivo concentration of cocaine in the rat brain for an intravenous dose of 0.3 mg/kg per min was found to be 17.1 +/- 1.3 microM.

Integrity signals

Registry

Crossref · 10.1021/ac00030a003

Cites

24 of 24 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Menacherry, S., Hubert, W., & Justice, J. B.
Affiliations
Emory University (US)
Venue
Analytical Chemistry
Published
1992-03-15
Volume
64
Issue
6
Pages
577-583
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W2023584567
Cited by
217
References
24
Citations by year
2025: 5 · 2024: 1 · 2023: 2 · 2022: 4 · 2021: 5 · 2020: 1 · 2019: 3 · 2018: 3 · 2017: 5 · 2016: 7 · 2015: 5 · 2014: 3 · 2013: 4 · 2012: 9
FWCI
14.93
Type
journal article
Language
en
Open access
closed
Locations
  • Analytical Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • National Institute on Drug Abuse (DA-05827)
Topics
  • Physical Sciences › Chemistry › Electrochemistry › Electrochemical Analysis and Applications
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Toxicology › Forensic Toxicology and Drug Analysis
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrochemical sensors and biosensors
Keywords
in vivo calibration, exogenous compounds, steady-state concentration, intravenous infusion, dialysate flow rate, permeate flux, analyte recovery, cocaine, rat brain
MeSH terms
Animals, Brain, Calibration, Cocaine, Dialysis, Female, Infusions, Intravenous, Rats, Inbred Strains, Rats, In Vitro Techniques

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review