Call 408.493.1800 | Fax 408.493.1801 | Toll Free 800.891.9699 (US Only) | Email: [email protected]

Lithium Assay Kit (Colorimetric)

The first and most sensitive kit in the market that measures exogenous levels of Lithium
Catalog #: K545

Product Details

Cat # +Size K545-100
Size 100 assays
Kit Summary • Detection method- Absorbance (540 nm/630 ratio)
• Application- The kit can detect Lithium concentration as low as 100 µM in human serum
Detection Method Absorbance (540 nm/630 ratio)
Species Reactivity Eukaryotes
Applications The kit can detect Lithium concentration as low as 100 µM in human serum
Features & Benefits • Simple, one-step colorimetric assay
• Endogenous mono-, di-, and trivalent ions do not interfere with the assay
• The kit can detect Lithium concentration as low as 100 µM in a variety of samples
Kit Components • Lithium Assay Buffer
• Probe Solution
• Sodium-Masking Solution
• Lithium Standard (10 mM)
Storage Conditions -20°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.


Lithium, the lightest alkali metal element, is a ductile, reactive metal that occurs in nature as the Li+ cation and is found in various mineral compounds. Physiologically, lithium is present only in trace levels and is not considered to be an essential dietary nutrient. However, lithium is routinely used in medicine as a psychoactive drug. Lithium acts as a mood stabilizer and is considered to be the gold standard first-line treatment for bipolar depression and acute mania. Patients treated with lithium are less likely to require hospitalization or complete suicide than patients treated with other mood stabilizers or antipsychotics. Chemically, lithium is the simplest possible drug—as an element, it is not metabolized by the body and has zero-order renal elimination kinetics. Lithium has a narrow therapeutic/toxic ratio and requires blood level monitoring, both to ensure efficacy and decrease the risk of toxic side-effects. The target serum concentration for lithium maintenance therapy ranges from 0.6-1.2 mM. At serum levels ≥1.5 mM there is a sharp increase in severe adverse effects. Overt, potentially fatal side effects (such as seizures, ataxia and loss of consciousness) are observed at serum levels >2.5 mM. BioVision’s Lithium Assay Kit allows for quantification of lithium levels in biological fluids such as serum and plasma. The assay uses a lithium-selective bichromatic probe that undergoes an absorbance change at two distinct wavelengths upon binding to Li+ (λ1 = 540 nm, λ2 = 630 nm). The ratio of the two optical measurements is used to accurately calculate sample Li+ concentration. The kit also includes a sodium masking reagent to prevent the possibility of interference by supra-physiological levels of serum Na+ (hypernatremia). The assay is quick, is high-throughput adaptable and has a linear range from 0.5 – 10 nmole lithium per well (corresponding to 0.1 – 2 mM serum lithium)

Why buy BioVision Products?
Global Presence
Technical Support
BioVision aims to provide our customers innovative tools for accelerating drug discovery and biological research. BioVision offers >8,000 products including the most comprehensive array of assay kits for key targets in Metabolic pathways.
BioVision is committed to providing the highest quality products at a competitive price.
We have a broad network of global distributors who are ready to address your research needs and ensure fast delivery.
Our highly trained Technical Support team provides comprehensive product support and is dedicated to resolving your issues quickly and efficiently.