胃蛋白酶(PP)等多因子檢測試劑盒(流式熒光發(fā)光法)
Multiplex Assay Kit for Pepsin (PP) ,etc. by FLIA (Flow Luminescence Immunoassay)
(注:單次混測多因子不超過8個指標 )
- 編號LMA632Hu
- 物種Homo sapiens (Human,人) 相同的名稱,不同的物種。
- 實驗方法競爭抑制
- 反應時長1.5h
- 檢測范圍0.2-200ng/mL
- 靈敏度最小可檢測劑量小于等于0.067 ng/mL.
- 樣本類型Serum, plasma, saliva, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
- 下載 英文說明書 中文說明書
- 規(guī)格 8指標數(shù) 7指標數(shù) 6指標數(shù) 5指標數(shù) 4指標數(shù) 3指標數(shù) 2指標數(shù)1指標數(shù)
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特異性
本試劑盒用于檢測胃蛋白酶(PP)等多因子檢測試劑盒(流式熒光發(fā)光法),經(jīng)檢測與其它相似物質(zhì)無明顯交叉反應。
由于受到技術及樣本來源的限制,不可能完成對所有相關或相似物質(zhì)交叉反應檢測,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。
回收率
分別于定值血清及血漿樣本中加入一定量的胃蛋白酶(PP)等多因子檢測試劑盒(流式熒光發(fā)光法)(加標樣品),重復測定并計算其均值,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) | 86-97 | 90 |
EDTA plasma(n=5) | 94-102 | 97 |
heparin plasma(n=5) | 92-101 | 96 |
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、高值定值樣本進行定量測定,每個樣本使用同一試劑盒重復測定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)加入適量的胃蛋白酶(PP)等多因子檢測試劑盒(流式熒光發(fā)光法),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胃蛋白酶(PP)等多因子檢測試劑盒(流式熒光發(fā)光法)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) | 80-96% | 95-102% | 92-99% | 80-99% |
EDTA plasma(n=5) | 85-93% | 79-99% | 93-101% | 96-105% |
heparin plasma(n=5) | 84-91% | 80-101% | 87-102% | 80-89% |
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行操作可減少人為誤差。
實驗流程
1. 實驗前標準品、試劑及樣本準備;
2. 加樣(標準品、樣本、磁珠、檢測溶液A)標準品或樣本50μL及磁珠10μL,加檢測溶液A50μL,
37°C酶標板振蕩器孵育60分鐘;
3. 磁吸洗板3次;
4. 加檢測溶液B100μL,37°C振動孵育30分鐘;
5. 磁吸洗板3次;
6. 加鞘液100μL,旋渦震蕩2分鐘后讀數(shù)。
實驗原理
將胃蛋白酶(PP)等多因子檢測試劑盒(流式熒光發(fā)光法)抗體包被于磁珠,制成固相載體,向微孔中分別加入標準品或標本以及磁珠、標記VEGFA,標記的胃蛋白酶(PP)等多因子檢測試劑盒(流式熒光發(fā)光法)和未標記的胃蛋白酶(PP)等多因子檢測試劑盒(流式熒光發(fā)光法)與連接于固相載體上的抗體競爭結合,然后將未結合物洗凈后,加入PE標記的親和素,再次徹底洗滌后即可上機讀數(shù)。MFI值和樣品中的胃蛋白酶(PP)等多因子檢測試劑盒(流式熒光發(fā)光法)呈負相關。
贈品
增值服務
相關產(chǎn)品
編號 | 適用物種:Homo sapiens (Human,人) | 應用(僅供研究使用,不用于臨床診斷!) |
NPA632Hu01 | 胃蛋白酶(PP)天然蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
CPA632Hu21 | 胃蛋白酶(PP)卵白蛋白偶聯(lián)物 | Immunogen; SDS-PAGE; WB. |
CPA632Hu23 | 胃蛋白酶(PP)卵白蛋白偶聯(lián)物 | Immunogen; SDS-PAGE; WB. |
CPA632Hu22 | 胃蛋白酶(PP)卵白蛋白偶聯(lián)物 | Immunogen; SDS-PAGE; WB. |
PAA632Hu02 | 胃蛋白酶(PP)多克隆抗體 | WB; IHC; ICC; IP. |
PAA632Hu08 | 胃蛋白酶(PP)多克隆抗體 | WB; IHC; ICC; IP. |
PAA632Hu01 | 胃蛋白酶(PP)多克隆抗體 | WB; IHC |
PAA632Hu09 | 胃蛋白酶(PP)多克隆抗體 | WB; IHC; ICC; IP. |
LAA632Hu71 | 胃蛋白酶(PP)多克隆抗體(生物素標記) | WB; IHC; ICC. |
MAA632Hu22 | 胃蛋白酶(PP)單克隆抗體 | WB; IHC; ICC; IP. |
SEA632Hu | 胃蛋白酶(PP)檢測試劑盒(酶聯(lián)免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
CEA632Hu | 胃蛋白酶(PP)檢測試劑盒(酶聯(lián)免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
IEA632Hu | 胃蛋白酶(PP)檢測試劑盒(酶聯(lián)免疫吸附試驗法,快捷型) | Enzyme-linked immunosorbent assay for Antigen Detection. |
LMA632Hu | 胃蛋白酶(PP)等多因子檢測試劑盒(流式熒光發(fā)光法) | FLIA Kit for Antigen Detection. |
KSA632Hu11 | 胃蛋白酶(PP)檢測試劑盒DIY材料(酶聯(lián)免疫吸附試驗法) | Main materials for "Do It (ELISA Kit) Yourself". |
參考文獻
雜志 | 參考文獻 |
Radiology and Oncology | LEVEL OF PEPSIN AND BILE ACIDS IN THE SALIVA OF PATIENTS WITH GLOTTIS T1 CARCINOMA [Szd:Source] |
Radiology and Oncology | Higher levels of total pepsin and bile acids in the saliva as a possible risk factor for early laryngeal cancer [Pubmed:Pmc4362607] |
Clin Otolaryngol | Pepsin and bile acids in saliva in patients with laryngopharyngeal reflux – a prospective comparative study [PubMed: 25516364] |
journal of pediatric gastroenterology and nutrition | Does Positioning Affect Tracheal Aspiration of Gastric Content in Ventilated Infants? [PubMed: 25313850] |
Journal of Voice | Detecting Laryngopharyngeal Reflux by Immunohistochemistry of Pepsin in the Biopsies of Vocal Fold Leukoplakia [pubmed:28756936] |
Sensors (Basel) | Label-Free Detection of Salivary Pepsin Using Gold Nanoparticle/Polypyrrole Nanocoral Modified Screen-Printed Electrode [Pubmed:29882917] |
The Tohoku Journal of Experimental Medicine | Association between Pepsin in Bronchoalveolar Lavage Fluid and Prognosis of Chronic Fibrosing Interstitial Lung Disease [] |
Respiratory?Research | Pulmonary aspiration in preschool children with cystic fibrosis [Pubmed: 30558606] |
Tanaffos | Association of Bile Acid and Pepsin Micro-aspiration with Chronic Obstructive Pulmonary Disease Exacerbation [Pubmed: 31423141] |
Sensors | Optimization of Saliva Collection and Immunochromatographic Detection of Salivary Pepsin for Point-of-Care Testing of Laryngopharyngeal Reflux [Pubmed: 31935973] |
BIOSCIENCE REPORTS | Presence of pepsin in laryngeal tissue and saliva in benign and malignant neoplasms [Pubmed: 33103719] |
OTOLARYNGOLOGY-HEAD AND NECK SURGERY | Relationship Between Pepsin Expression and Dysplasia Grade in Patients With Vocal Cord Leukoplakia [Pubmed: 32692278] |
American Journal of Otolaryngology | Association of pepsin and DNA damage in laryngopharyngeal reflux-related vocal fold polyps [Pubmed: 32889371] |
The relationship between laryngopharyngeal reflux based on pepsin value and clinical characteristics of laryngeal cancer patients [] | |
Med Sci Monit | The Role of Salivary Pepsin in the Diagnosis of Gastroesophageal Reflux Disease (GERD) Evaluated Using High-Resolution Manometry and 24-Hour??- [33220027] |
Annals of Esophagus | Pepsin properties, structure, and its accurate measurement: a narrative review [] |
Laryngoscope | The Impact of Laryngopharyngeal Reflux on Occurrence and Clinical Course of Recurrent Respiratory Papillomatosis [34338331] |
Pulmonology | Bronchoalveolar lavage (BAL) amylase and pepsin levels as potential biomarkers of aspiration pneumonia [Pubmed:35715334] |
Neuromodulation: Technology at the Neural Interface | Transcutaneous Electrical Acustimulation Improved the Quality of Life in Patients With Diarrhea-Irritable Bowel Syndrome [Pubmed:35088760] |