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Limit of Detection: Concentration or quantity that is derived from the smallest measure that can be detected with reasonable certainty for a given analytical procedure.
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 JoVE Medicine

Quantification of the Immunosuppressant Tacrolimus on Dried Blood Spots Using LC-MS/MS

1iC42 Clinical Research and Development, University of Colorado, Anschutz Medical Campus, 2Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, 3Food and Drug Administration (FDA), Center of Drug Evaluation Research - Office of Generic Drugs, 4Transplant Clinical Research, University of Cincinnati


JoVE 52424

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 JoVE Engineering

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

1Advanced Vision System Research Section, Electronics & Telecommunication Research Institute (ETRI), 2Intelligent Cognitive Technology Research Department, Electronics & Telecommunication Research Institute (ETRI), 3Peter Grünberg Institute (PGI-8), Forschungszentrum Jülich


JoVE 53869

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 JoVE Bioengineering

Fully Automated Centrifugal Microfluidic Device for Ultrasensitive Protein Detection from Whole Blood

1Department of Biomedical Engineering, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, Republic of Korea, 2Current Affiliation is Agency for Defense Development (ADD), Daejeon, Republic of Korea, 3Current Affiliation is KOGAS (Korea Gas Corporation) Research Institute, Daegu, Republic of Korea, 4Center for Soft and Living Matter, Institute for Basic Science (IBS), UNIST-gil 50, Ulsan, Republic of Korea


JoVE 54143

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 Science Education: Essentials of Analytical Chemistry

Calibration Curves

JoVE Science Education

Source: Laboratory of Dr. B. Jill Venton - University of Virginia

Calibration curves are used to understand the instrumental response to an analyte and predict the concentration in an unknown sample. Generally, a set of standard samples are made at various concentrations with a range than includes the unknown of interest and the instrumental response at each concentration is recorded. For more accuracy and to understand the error, the response at each concentration can be repeated so an error bar is obtained. The data are then fit with a function so that unknown concentrations can be predicted. Typically the response is linear, however, a curve can be made with other functions as long as the function is known. The calibration curve can be used to calculate the limit of detection and limit of quantitation. When making solutions for a calibration curve, each solution can be made separately. However, that can take a lot of starting material and be time consuming. Another method for making many different concentrations of a solution is to use serial dilutions. With serial dilutions, a concentrated sample is diluted down in a stepwise manner to make lower concentrations. The next sample is made from the previous dilution, and the dilution factor is often kept constant. The advantage is that only one

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 JoVE Behavior

Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects

1Department of Anesthesiology and Intensive Care Medicine, Charite Universitätsmedzin, Campus Virchow Klinikum und Campus Charite Mitte, 2Department of Neuroscience, Molecular Physiology of Somatic Sensation, Max Delbrück Center for Molecular Medicine, 3Institute of Pharmacology, University of Heidelberg


JoVE 52966

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 JoVE Chemistry

Quantitative Detection of Trace Explosive Vapors by Programmed Temperature Desorption Gas Chromatography-Electron Capture Detector

1Chemical Sensing & Fuel Technology, Chemistry Division, U.S. Naval Research Laboratory, 2NOVA Research, Inc., 3Bio/Analytical Chemistry, Chemistry Division, U.S. Naval Research Laboratory, 4Navy Technology Center for Safety and Survivability, Chemistry Division, U.S. Naval Research Laboratory


JoVE 51938

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 JoVE Bioengineering

Bacterial Detection & Identification Using Electrochemical Sensors

1Research Service, Veterans Affairs Greater Los Angeles Healthcare System, 2Department of Urology, The David Geffen School of Medicine, University of California, Los Angeles, 3GeneFluidics, 4Division of Infectious Diseases, Veterans Affairs Greater Los Angeles Healthcare System, 5Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles


JoVE 4282

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 JoVE Immunology and Infection

Highly Resolved Intravital Striped-illumination Microscopy of Germinal Centers

1Biophysical Analytics, German Rheumatism Research Center, Leibniz Institute, 2Microscopy Core Facility, Max-Delbrück Center for Molecular Medicine, 3Immunodynamics, German Rheumatism Research Center, Leibniz Institute, 4LaVision Biotec GmbH, 5Immunodynamics and Intravital Imaging, Charité - University of Medicine


JoVE 51135

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 JoVE Immunology and Infection

High-throughput Detection Method for Influenza Virus

1Laboratory of Molecular Immunology and Immunotherapy, Blood Research Institute, 2Department of Microbiology, Mount Sinai School of Medicine, 3Laboratory of Molecular Genetics, Blood Research Institute, 4City of Milwaukee Health Department Laboratory, 5Division of Hematology-Oncology/BMT, Children's Hospital of Wisconsin, Medical College of Wisconsin, 6Division of Hematology and Oncology, Dept Medicine, Medical College of Wisconsin


JoVE 3623

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