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降鈣素原(PCT)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)

ELISA Kit for Procalcitonin (PCT)

Pro-Calcitonin

  • 降鈣素原(PCT)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 降鈣素原(PCT)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 降鈣素原(PCT)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 實(shí)驗(yàn)結(jié)果圖
  • SEA689Ca.jpg 標(biāo)準(zhǔn)曲線(xiàn)圖
  • Certificate 通過(guò)ISO 9001、ISO 13485質(zhì)量體系認(rèn)證

特異性

本試劑盒用于檢測(cè)降鈣素原(PCT),經(jīng)檢測(cè)與其它相似物質(zhì)無(wú)明顯交叉反應(yīng)。
由于受到技術(shù)及樣本來(lái)源的限制,不可能完成對(duì)所有相關(guān)或相似物質(zhì)交叉反應(yīng)檢測(cè),因此本試劑盒有可能與未經(jīng)檢測(cè)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(cè)定并計(jì)算其均值,回收率為測(cè)定值與理論值的比率。

樣本 回收率范圍(%) 平均回收率(%)
serum(n=5) 98-105 101
EDTA plasma(n=5) 92-101 97
heparin plasma(n=5) 91-98 95

精密度

精密度用樣品測(cè)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(duì)低、中、高值定值樣本進(jìn)行定量檢測(cè),每份樣本連續(xù)測(cè)定20 次,分別計(jì)算不同濃度樣本的平均值及SD值。
批間差:選取3個(gè)不同批次的試劑盒分別對(duì)低、中、高值定值樣本進(jìn)行定量測(cè)定,每個(gè)樣本使用同一試劑盒重復(fù)測(cè)定8次,分別計(jì)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(xiàn)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(cè)樣本,線(xiàn)性范圍即為稀釋后樣本中降鈣素原(PCT)含量的測(cè)定值與理論值的比率。

樣本 1:2 1:4 1:8 1:16
serum(n=5) 78-89% 83-91% 85-94% 94-104%
EDTA plasma(n=5) 82-98% 79-91% 82-96% 80-93%
heparin plasma(n=5) 80-96% 90-102% 88-97% 79-89%

穩(wěn)定性

經(jīng)測(cè)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(duì)試劑盒破壞前后檢測(cè)值的影響,實(shí)驗(yàn)室的環(huán)境條件需盡量保持一致,尤其是實(shí)驗(yàn)室內(nèi)溫度、濕度及溫育條件。其次由同一實(shí)驗(yàn)員來(lái)進(jìn)行操作可減少人為誤差。

實(shí)驗(yàn)流程

1. 實(shí)驗(yàn)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(shí);
3. 吸棄,加檢測(cè)溶液A100µL,37°C孵育1小時(shí);
4. 洗板3次;
5. 加檢測(cè)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(shí)驗(yàn)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(guò)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(zhǎng)下測(cè)定吸光度(O.D.值),計(jì)算樣品濃度。

相關(guān)產(chǎn)品

編號(hào) 適用物種:Canis familiaris; Canine (Dog,犬) 應(yīng)用(僅供研究使用,不用于臨床診斷!)
RPA689Ca01 降鈣素原(PCT)重組蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
PAA689Ca01 降鈣素原(PCT)多克隆抗體 WB; IHC; ICC; IP.
SEA689Ca 降鈣素原(PCT)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) Enzyme-linked immunosorbent assay for Antigen Detection.

參考文獻(xiàn)

雜志 參考文獻(xiàn)
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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]
Journal of Human Hypertension Procalcitonin and Pentraxin-3: Current biomarkers in inflammation in white coat hypertension [PubMed: 26040439]
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Archives of Medical Science Inflammatory mediators in the diagnosis and treatment of acute pancreatitis: pentraxin-3, procalcitonin and myeloperoxidase [Pubmed:29593801]
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]
Journal of Medical Biochemistry Circulating nuclear factor-kappa B mediates cancer-associated inflammation in human breast and colon cancer [33776564]
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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