Aspartic Acid Standard

An aspartic acid standard is a laboratory reference material containing a known amount or concentration of aspartic acid, an amino acid used to identify and quantify this compound in environmental samples. In analytical workflows, the standard provides a defined comparison point: instruments measure its response under selected conditions, and that response supports calibration, concentration calculations, and assessment of method performance. Environmental scientists use aspartic acid standards to improve measurement accuracy, consistency, and comparability when studying amino acids or related organic compounds. They also support quality control and more reliable interpretation of environmental chemistry data.

Aspartic Acid Standard - Related Videos

Research

JoVE Journal - Biology

Examination of Anatomical Features of Retinal Ganglion Cells Under N-methyl-D-aspartic Acid (NMDA)-induced Excitotoxicity

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2025

Here, we describe the use of a genetically directed alkaline phosphatase (AP) labeling method to investigate the anatomical features and phenotypes of mouse retinas under NMDA-induced excitotoxicity. In conjunction with several retinal ganglion cell (RGC) subtype-specific reporter lines, we uncover novel phenotypes in dying RGCs throughout the degenerative process.

Education

JoVE Core - Chemistry

Standard Electrode Potentials

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2020

On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...

Research

JoVE Journal - Engineering
Free Sample

Standardized Method for Measuring Collection Efficiency from Wipe-sampling of Trace Explosives

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Cited by 7 •

2017

Optimized sampling protocols and the development of new wipe materials can be facilitated by standardized measurements of collection efficiency from wipe-sampling. Our approach for sampling trace explosives uses an automated device to control speed, force, and distance during wipe-sampling followed by extraction of collected explosives.

Acid and Base Concentrations - Concepts

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2020

Acids and Bases An Arrhenius acid produces hydrogen ions when it is dissolved in water: HA + H2O → H+(aq) + A-(aq) Here, HA is the non-dissociated acid, H+ is the hydrogen cation, and A- is the solvated anion — called the conjugate base. An Arrhenius base produces hydroxide ions when dissolved in water: BOH + H2O → B+(aq) + OH-(aq) Here, BOH is the non-dissociated base, OH- is the hydroxide ion, and B+ is the solvated cation — called the conjugate acid. A conjugate base is formed when an acid...

High-throughput Flow Cytometry Cell-based Assay to Detect Antibodies to N-Methyl-D-aspartate Receptor or Dopamine-2 Receptor in Human Serum

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Cited by 15 •

2013

Over the recent years, live cell-based assays have been used successfully to detect antibodies against surface and conformational antigens. Here, we describe a method using high-throughput flow cytometry enabling the analysis of large cohorts of patients. Detection of novel antibodies will improve diagnosis and treatment of immune-mediated disorders.

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