Apolipoprotein E (ApoE) Assay Kit & Bulk Reagents

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US$199.00

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Selling unit: per 100ml

Product Name

  1. Common name: Apolipoprotein E (ApoE) test kit (immunoturbidimetric assay)
  2. English name: ApoE Reagent Kit (Immunoturbidimetric Method)

Reagent Ratio

3:1, 4:1, 5:1, common ratio 3:1, other ratios need to be customized

Intended Use

The APOE assay kit is used to determine the amount of ApoE in human serum. ApoE is contained in the ligands of very low density, high density and low density lipoprotein receptors. Apolipoprotein E plays an important role in lipid metabolism.

Test Principle

When the specimen is mixed with reagents, the APOE in the specimen specifically reacts with the antiserum to form an insoluble complex, causing an increase in turbidity, and the concentration of APOE in the specimen can be determined from the turbidity of this insoluble complex.

Main Components

Reagent components included in the product.

Apolipoprotein E (ApoE) Assay Kit & Bulk Reagents

*Components are not interchangeable in kits with different lot numbers.

*Reagent components not included in the product, but necessary for the test: outsourced normal and abnormal QCs and calibrators.

Storage Conditions And Expiration Date

The kit is stored at 2-8°C away from light and is valid for one year.

Reagents that have been opened are careful not to be contaminated, and reagents are stable in the instrument compartment (2-8°C) for one month.

The reagents must not be frozen.

Applicable Instruments

Hitachi 7180/7600; Olympus AU680/2700; Toshiba TBA120; Myriad BS2000M/480; Siemens ADVIA 1800/2400 series automatic biochemical analyzers.

Sample Request

The specimen was fresh serum separated by centrifugation to remove blood clots.

2-8°C can be stable for 2 weeks. If longer storage time is required, specimens must be frozen.

Test Method

  1. Reagent preparation: liquid reagents are ready to use out of the bottle.
  2. test conditions: (different parameters on the machine can be requested according to different testing instruments)

Apolipoprotein E (ApoE) Assay Kit & Bulk Reagents

Operation steps.

Apolipoprotein E (ApoE) Assay Kit & Bulk Reagents

Reagents and sample volumes can be increased or decreased in proportion to the requirements of different biochemical analyzers.

  1. Calibration procedure.

Landau calibrators are recommended.

  1. QC control procedures.

It is recommended that each laboratory establish its own quality control system and select appropriate quality control products for quality control. The measured values of QC products should be within the specified range. If outside the specified range, it is necessary to take appropriate measures or contact the manufacturer.

  1. Calculation.

5 points are calibrated and the corresponding values are entered. With △A as the vertical coordinate and concentration as the horizontal coordinate, the standard curve is plotted, and this standard curve is corrected by the non-linear method Spline, Logit-Log4P and other modes, and this standard curve is saved and used to calculate the results.

Positive Judgment Value Or Reference Interval

27.0~49.0 mg/L

It is recommended that each laboratory establish its own reference range of normal values.

Interpretation Of Test Results

Bilirubin ≤ 40 mg/dL, hemoglobin ≤ 500 mg/dL and celiac ≤ 300 mg/dL did not interfere with the determination.

Limitations Of The Test Method

The measurement of ApoE in human serum or plasma is only one of the indicators used by the clinician to make a diagnosis of the patient. The clinician must also make a comprehensive judgment based on the patient’s physical symptoms, medical history, and other diagnostic items and diagnostic tools.

Product Performance Index

Absorbance of reagent blank: wavelength 340 nm, optical diameter 1.0 cm, temperature 37°C, A0  ≤ 0.15.

Analytical sensitivity: the kit tests 50.0 mg/L of the analyte, the absorbance change value ΔA ≥ 0.03.

Linearity range: test serum samples, reagent linearity in the interval of 0~150 mg/L, linear correlation coefficient|r| should not be less than 0.975; in the interval of 0~50.0 mg/L, the absolute deviation of linearity should not exceed 5.0 mg/L; in the interval of (50.0~150 mg/L, the relative deviation of linearity should not exceed ±10%.

Precision: repeatability CV≤ 5.0%; relative extreme difference between batches≤ 9.0%.

Accuracy: Relative deviation ≤ 10%.

Caution

  1. This product is for in vitro diagnosis only.
  2. Avoid contamination when using the reagent, the container used must be clean, and please take necessary precautions, do not swallow, and avoid contact with skin and mucous membrane.
  3. Please dispose of the measured samples and waste liquids in accordance with the relevant national and local laws and regulations.
  4. For samples with lipid blood visible to the naked eye and triglyceride content exceeding 250 mg/dL, the results need to be diluted with saline before determination and multiplied by the dilution factor.
  5. Please dispose of the measured samples and waste liquids in accordance with the relevant national and local laws and regulations.
  6. When changing the reagent lot number, the calibration should be re-calibrated.

Reference

  1. Bacharik, P. S. et al Clinica Chimica Acta (1988) 30:599, 806
  2. Albers, J. J. et al Clin Chem (1992); 38: 658
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