胃蛋白酶(PP)檢測試劑盒(酶聯(lián)免疫吸附試驗法,快捷型)
Instant ELISA Kit for Pepsin (PP)
- 編號IEA632Hu
- 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(yīng)時長1h, 10min
- 檢測范圍2.47-200ng/mL
- 靈敏度最小可檢測劑量小于等于0.94ng/mL.
- 樣本類型Serum, plasma, 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 48T96T 96T*5 96T*10 96T*100
- 價格 ¥ 3234 ¥ 4620 ¥ 20790 ¥ 39270 ¥ 323400
- 欲了解實際交易價格和更多情況,請與當(dāng)?shù)亟?jīng)銷商聯(lián)系!
特異性
本試劑盒用于檢測胃蛋白酶(PP)檢測試劑盒(酶聯(lián)免疫吸附試驗法,快捷型),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胃蛋白酶(PP)檢測試劑盒(酶聯(lián)免疫吸附試驗法,快捷型)(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) | 94-105 | 98 |
EDTA plasma(n=5) | 84-98 | 93 |
heparin plasma(n=5) | 93-101 | 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(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)加入適量的胃蛋白酶(PP)檢測試劑盒(酶聯(lián)免疫吸附試驗法,快捷型),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)檢測試劑盒(酶聯(lián)免疫吸附試驗法,快捷型)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) | 85-99% | 93-102% | 87-96% | 84-96% |
EDTA plasma(n=5) | 88-98% | 78-101% | 90-104% | 85-99% |
heparin plasma(n=5) | 81-101% | 78-93% | 78-93% | 84-91% |
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(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溫育30分鐘;
3. 甩干,加檢測溶液A100µL,37°C溫育30分鐘;
4. 洗板3次;
5. 加檢測溶液B100µL, 37°C孵育10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
本試劑盒應(yīng)用競爭抑制酶聯(lián)免疫分析法測定標(biāo)本中待測物質(zhì)水平。將胃蛋白酶(PP)檢測試劑盒(酶聯(lián)免疫吸附試驗法,快捷型)單克隆抗體包被微孔板,制成固相載體,往包被抗體的微孔中同時加入生物素標(biāo)記的抗原和待測抗原(標(biāo)準(zhǔn)品或樣本),待測抗原與生物素標(biāo)記抗原對特異性抗體進行競爭結(jié)合。溫育后經(jīng)洗滌去掉未結(jié)合物,然后加入HRP標(biāo)記的親和素,經(jīng)過溫育和徹底洗滌后加入底物TMB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。待測標(biāo)本濃度越高,標(biāo)記抗原和抗體的結(jié)合就越受到抑制,顯色愈淺。顯色的深淺與酶量呈正相關(guān),而與樣品中待測物質(zhì)含量呈負(fù)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。
增值服務(wù)
相關(guān)產(chǎn)品
編號 | 適用物種:Homo sapiens (Human,人) | 應(yīng)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(biāo)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(xiàn)
雜志 | 參考文獻(xiàn) |
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] |