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降鈣素原(PCT)檢測試劑盒(酶聯(lián)免疫吸附試驗法)

ELISA Kit for Procalcitonin (PCT)

Pro-Calcitonin

  • 降鈣素原(PCT)檢測試劑盒(酶聯(lián)免疫吸附試驗法) 產(chǎn)品包裝(模擬)
  • 降鈣素原(PCT)檢測試劑盒(酶聯(lián)免疫吸附試驗法) 產(chǎn)品包裝(模擬)
  • 降鈣素原(PCT)檢測試劑盒(酶聯(lián)免疫吸附試驗法) 實驗結(jié)果圖
  • SEA689Po.jpg 標(biāo)準(zhǔn)曲線圖
  • Certificate 通過ISO 9001、ISO 13485質(zhì)量體系認(rèn)證

特異性

本試劑盒用于檢測降鈣素原(PCT),經(jīng)檢測與其它相似物質(zhì)無明顯交叉反應(yīng)。
由于受到技術(shù)及樣本來源的限制,不可能完成對所有相關(guān)或相似物質(zhì)交叉反應(yīng)檢測,因此本試劑盒有可能與未經(jīng)檢測的其它物質(zhì)有交叉反應(yīng)。

回收率

分別于定值血清及血漿樣本中加入一定量的降鈣素原(PCT)(加標(biāo)樣品),重復(fù)測定并計算其均值,回收率為測定值與理論值的比率。

樣本 回收率范圍(%) 平均回收率(%)
serum(n=5) 93-101 97
EDTA plasma(n=5) 81-102 97
heparin plasma(n=5) 95-102 98

精密度

精密度用樣品測定值的變異系數(shù)CV表示。CV(%) = SD/mean×100
批內(nèi)差:取同批次試劑盒對低、中、高值定值樣本進(jìn)行定量檢測,每份樣本連續(xù)測定20 次,分別計算不同濃度樣本的平均值及SD值。
批間差:選取3個不同批次的試劑盒分別對低、中、高值定值樣本進(jìn)行定量測定,每個樣本使用同一試劑盒重復(fù)測定8次,分別計算不同濃度樣本的平均值及SD值。
批內(nèi)差: CV<10%
批間差: CV<12%

線性

在定值血清及血漿樣本內(nèi)加入適量的降鈣素原(PCT),并倍比稀釋成1:2,1:4,1:8,1:16的待測樣本,線性范圍即為稀釋后樣本中降鈣素原(PCT)含量的測定值與理論值的比率。

樣本 1:2 1:4 1:8 1:16
serum(n=5) 88-99% 80-92% 80-97% 88-97%
EDTA plasma(n=5) 89-96% 93-105% 78-104% 78-102%
heparin plasma(n=5) 92-99% 93-104% 81-92% 84-97%

穩(wěn)定性

經(jīng)測定,試劑盒在有效期內(nèi)按推薦溫度保存,其活性降低率小于5%。
為減小外部因素對試劑盒破壞前后檢測值的影響,實驗室的環(huán)境條件需盡量保持一致,尤其是實驗室內(nèi)溫度、濕度及溫育條件。其次由同一實驗員來進(jìn)行操作可減少人為誤差。

實驗流程

1. 實驗前標(biāo)準(zhǔn)品、試劑及樣本的準(zhǔn)備;
2. 加樣(標(biāo)準(zhǔn)品及樣本)100µL,37°C孵育1小時;
3. 吸棄,加檢測溶液A100µL,37°C孵育1小時;
4. 洗板3次;
5. 加檢測溶液B100µL,37°C孵育30分鐘;
6. 洗板5次;
7. 加TMB底物90µL,37°C孵育10-20分鐘;
8. 加終止液50µL,立即450nm讀數(shù)。

實驗原理

將降鈣素原(PCT)抗體包被于96孔微孔板中,制成固相載體,向微孔中分別加入標(biāo)準(zhǔn)品或標(biāo)本,其中的降鈣素原(PCT)與連接于固相載體上的抗體結(jié)合,然后加入生物素化的降鈣素原(PCT)抗體,將未結(jié)合的生物素化抗體洗凈后,加入HRP標(biāo)記的親和素,再次徹底洗滌后加入TMB底物顯色。TMB在過氧化物酶的催化下轉(zhuǎn)化成藍(lán)色,并在酸的作用下轉(zhuǎn)化成最終的黃色。顏色的深淺和樣品中的降鈣素原(PCT)呈正相關(guān)。用酶標(biāo)儀在450nm波長下測定吸光度(O.D.值),計算樣品濃度。

相關(guān)產(chǎn)品

編號 適用物種:Sus scrofa; Porcine (Pig,豬) 應(yīng)用(僅供研究使用,不用于臨床診斷!)
RPA689Po01 降鈣素原(PCT)重組蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
SEA689Po 降鈣素原(PCT)檢測試劑盒(酶聯(lián)免疫吸附試驗法) Enzyme-linked immunosorbent assay for Antigen Detection.

參考文獻(xiàn)

雜志 參考文獻(xiàn)
Scandinavian Journal of Infectious Diseases Evaluation of neutrophilic CD64, interleukin 10 and procalcitonin as diagnostic markers of early- and late-onset neonatal sepsis [PubMed: 20085423]
International Journal of Radiation Oncology ? Biology ? Physics Effects of Berberine Against Radiation-Induced Intestinal Injury in Mice [PubMed: 20637981]
Ulus Travma Acil Cerrahi Derg Diagnostic and prognostic value of procalcitonin and phosphorus in acute mesenteric ischemia [PubMed: 21935794]
Egyptian Journal of Bronchology Serum procalcitonin and its relation to the outcome of ventilator-associated pneumoniain children [Essbronchology: Source]
University of Waikato The Assessment of Vitamin D, Antimicrobial Peptides and Procalcitonin in Bronchiectasis [Waikato:Source]
Egyptian Journal of Medical Microbiology Evaluation of the Diagnostic Utility of Fc Gamma Receptor Type 1 (nCD64) and Procalcitonin in Comparison with Conventional Methods for Diagnosis of Early Onset Neonatal Sepsis [Ejmm:Source]
Nigerian Medical Journal Efficacy of measuring procalcitonin levels in determination of prognosis and early diagnosis of bacterial resistance in sepsis [Pubmed:25657488]
Wiley online library The use and value of procalcitonin in solid organ transplantation [PubMed: 25996831]
Balkan Med J Diagnostic Value of Procalcitonin Levels in Acute Mesenteric Ischemia [PubMed: 26185718]
The Journal of Clinical Endocrinology & Metabolism Macrocalcitonin is a novel pitfall in the routine of serum calcitonin immunoassay [PubMed: 26647152]
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Journal of Thoracic Disease Expression pattern of soluble triggering receptor expressed on myeloid cells-1 in mice with Acinetobacter baumannii colonization and infection in the lung [Pubmed:29707313]
Asian?Journal of Psychiatry Procalcitonin and C-reactive protein as peripheral inflammatory markers in antipsychotic drug-free schizophrenia patients [Pubmed:29723719]
European Review for Medical and Pharmacological Sciences The predictive value of joint detection of serum amyloid protein A, PCT, and Hs-CRP in the diagnosis and efficacy of neonatal septicemia. [Pubmed: 31298341]
Medicina Modestly Elevated Serum Procalcitonin Levels in Patients with Rheumatoid Arthritis Free of Active Infection [Pubmed: 33080909]
MEDIATORS OF INFLAMMATION Reevaluation of Lung Injury in TNF-Induced Shock: The Role of the Acid Sphingomyelinase [Pubmed: 32410851]
Early label-free analysis of mitochondrial redox states by Raman spectroscopy predicts septic outcomes []
Journal of Immunology Research Moesin Is a Novel Biomarker of Endothelial Injury in Sepsis [33628853]
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Surg Endosc Original contribution: sleeve gastrectomy reduces soluble lectin-like oxidized low-density lipoprotein receptor-1 (sLOX-1) levels in patients with morbid obesity [Pubmed:35044516]
Bone Res Procalcitonin is expressed in osteoblasts and limits bone resorption through inhibition of macrophage migration during intermittent PTH treatment [Pubmed:35087025]
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