50

Iron assay kit (Nitroso-PSAP)

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SKU:
50-CFE-010-GEN
Availability:
Usually ships in 5 working days
NULL724.00

Description

Iron assay kit (Nitroso-PSAP)

Description

Iron is a mineral (functioning as an enzyme cofactor) that plays an essential role in many biological processes. It is essential to nearly all known organisms. As a transition element it can form a range of oxidation states, the most common being Fe2+ (or ferrous iron) and Fe3+ (or ferric iron). Ingested iron is mainly absorbed in the form of Fe2+. The trivalent form and the heme-bound Fe2+-component of iron is reduced by vitamin C. Before passing into the plasma, it is oxidized by ceruloplasmin to Fe3+ and bound to transferrin to form a transferrin-iron complex. Iron is generally stored in the centre of metalloproteins, in the heme complex, and in oxygen carrier proteins. Iron-containing proteins participate in many reactions, often utilizing transitory changes in the oxidation state of iron to carry out chemical reactions. Iron is important for redox reactions, oxygen transport (e.g. hemoglobin), short-term oxygen storage (e.g. myoglobin) and energy generation. Iron deficiency has many adverse consequences, including anemia, hemochromatosis, chronic renal disease and in children, behavioral and learning disorders. Iron excess is toxic to the body, harming the heart, liver, skin, pancreatic islet beta cells, bones, joints, and pituitary gland. Maintaining proper iron balance is essential for maintaining homeostasis and health.

Features

  • Using microplate reader for assay, no need to use Atomic Absorption Spectrometry or ICP-OES Optical Emission Spectrometry, which have been mainly used so far.
  • Good correlation with the result of Atomic Absorption Spectrometry and ICP-OES.
  • High throughput measurement by using microplate reader.
  • Assay range: 10-1,000 μg/dL
  • All animal species sample can be measured.
  • Assay time : just 10 minutes!
  • 1 point calibration – do not need multiple point measurement to make standard curve (r^2=0.9999).
  • Kit does not contain any hazardous components like cyanide or azide as preservative.
  • Samples : Serum, Plasma, Urine, Saliva, Cell lysate, Tissue extract, Hair extract, Water, etc
  • In combination with UIBC Assay kit LS Bathophenanthroline method (#UIB01E), TIBC (Total Iron Binding Capacity) can be measured.

Assay Principle

This kit measures iron concentration by color change caused by chelate complex formulation of Nitroso-PSAP and Iron. Iron combined to transportation protein such as transferrin is denatured by weak acid and denaturant then formulates Iron-Nitroso-PSAP chelate complex. Measuring this complex by 750 nm wavelength and obtain iron concentration.

Sample preparation

  1. Samples which do not require preparation
    e.g. Serum, Plasma and Urine

    * EDTA treated sample is not suitable for this assay.
    * Pooled urine should add HCl for storing. When assay, adujust sample pH 2 to 3.
  2. Samples which require acid extraction
    e.g. cell lysate, tissue homogenate and other liquid samples.

    * Measurable chemical species is limited as follows:
      ・Free iron
      ・Iron binds to protein (Protein-Fe2+, e.g. transferrin, ferritin, metallothionein)
    * Lysis buffer contains EDTA is not suitable for this assay.
    * Organoiron and Heme iron requires acidolysis.
  3. Microwave method and samples require acidolysis
    e.g. samples contain strong chelate agents such as EDTA, Organoiron (in the case of single bond -C-Fe-C-),
    iron in cyclic ligand (Fe-Porphyrin)

    * After acidolysis, adjust sample pH in 2 to 3.
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Additional Information

Size:
100 Tests
Type of Marker:
Trace elements assay
Marker:
UIBC
Storage:
2 - 8°C (don't freeze).
Colorimetric:
540-550 nm
Assay range:
10-800 ug/dL
Usage:
Serum
Remark:
Detection of unsaturated iron binding capacity(UIBC). Species independent.
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