全部商品分类
1/2
品牌： R&D Systems
下载产品说明书 下载SDS
用小程序，查商品更便捷
收藏
对比
咨询
产品介绍
产品介绍
产品信息
产品详情
Product Summary
The Quantikine Human Insulin C-Peptide Immunoassay is a 2.5 hour solid-phase ELISA designed to measure human Insulin C-Peptide in cell culture supernates, serum, plasma, and urine. It contains synthetic human Insulin C-Peptide and has been shown to accurately quantitate the peptide. Results obtained using natural human Insulin C-Peptide showed linear curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for naturally occurring human Insulin C-Peptide.
Precision
Intra-Assay Precision (Precision within an assay) Intra-assay Precision (Precision within an assay)
Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision
Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision
Inter-Assay Precision (Precision between assays) Inter-assay Precision (Precision between assays)
Three samples of known concentration were tested in twenty separate assays to assess inter-assay precision. Assays were performed by at least three technicians using two lots of components
Three samples of known concentration were tested in twenty separate assays to assess inter-assay precision. Assays were performed by at least three technicians using two lots of components
Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Urine
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 20 | 20 | 20 |
| Mean (pmol/L) | 129 | 436 | 845 | 127 | 437 | 861 |
| Standard Deviation | 5.77 | 14.3 | 13.2 | 12.4 | 33 | 65.3 |
| CV% | 4.5 | 3.3 | 1.6 | 9.8 | 7.6 | 7.6 |
Recovery
The recovery of human Insulin C-Peptide spiked to levels throughout the range of the assay in various matrices was evaluated.
| Sample Type | Average % Recovery | Range % |
|---|---|---|
| Cell Culture Media (n=4) | 99 | 84-106 |
| EDTA Plasma (n=4) | 101 | 95-108 |
| Heparin Plasma (n=4) | 102 | 90-115 |
| Serum (n=4) | 103 | 96-109 |
| Urine (n=4) | 97 | 81-106 |
Linearity
To assess the linearity of the assay, samples containing and/or spiked with high concentrations of human Insulin C-Peptide were diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Scientific Data
Assay Procedure
Refer to the product Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.
- Prepare all reagents, standard dilutions, and samples as directed in the product insert.
- Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.
- Add 100 µL of Assay Diluent to each well.
- Add 100 µL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 1 hour.
- Aspirate each well and wash, repeating the process 3 times for a total of 4 washes.
- Add 200 µL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 1 hour.
- Aspirate and wash 4 times.
- Add 200 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes. PROTECT FROM LIGHT.
- Add 50 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.
100 µL Assay Diluent
100 µL Standard, Control, or Sample
200 µL Conjugate
200 µL Substrate Solution
50 µL Stop Solution
Human C-Peptide Quantikine ELISA Kit Summary
Assay Type
Solid Phase Sandwich ELISA
Format
96-well strip plate
Assay Length
2.5 hours
Sample Type & Volume Required Per Well
Cell Culture Supernates (100 uL), Serum (50 uL), EDTA Plasma (50 uL), Heparin Plasma (50 uL), Urine (10 uL)
Sensitivity
2.88 pmol/L
Assay Range
28.9 - 1,850 pmol/L (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Urine)
Specificity
Natural and synthetic human Insulin C-Peptide.
Cross-reactivity
< 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.
Interference
No significant interference observed with available related molecules.
背景
别名
C-P,C-Peptide,IDDM2,ILPR,Insulin C-Peptide,insulin,IRDN,MODY10,Proinsulin C-Peptide,proinsulin,Proinsulin C-Peptide
背景
Background: C-Peptide
Insulin and the IGFs are members of the insulin family of molecules. IGF-I and II are structurally homologous to proinsulin, and can be thought of as taking the shape of an exaggerated, inverted letter G. Intrachain disulfide bonds link sections of the G. The single chain insulin propeptide consists of a 30 amino acid B chain (aa 2554), a C-peptide (aa 5589), and a 21 aa A chain (aa 90110). Removal of the C-peptide by proteolysis enables the formation of mature Insulin, a disulfidelinked heterodimer of the A and B chains. Circulating C-peptide levels are elevated in hyperinsulinism, obesity, and type II diabetes.
Long Name:
Proinsulin C-Peptide
Entrez Gene IDs:
3630 (Human); 16333 (Mouse); 397415 (Porcine); 280829 (Bovine); 483665 (Canine)
Alternate Names:
C-P; C-Peptide; IDDM2; ILPR; Insulin C-Peptide; insulin; IRDN; MODY10; Proinsulin C-Peptide; proinsulin
研究领域
制备和贮存
保存方式
Preparation and Storage
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
声明 ：本官网所有报价均为常温或者蓝冰运输价格，如有产品需要干冰运输，需另外加收干冰运输费。