胃蛋白酶(PP)检测试剂盒(酶联免疫吸附试验法,快捷型)
Instant ELISA Kit for Pepsin (PP)
- 编号IEA632Hu
- 物种Homo sapiens (Human，人) 相同的名称，不同的物种。
- 实验方法竞争抑制
- 反应时长1h, 10min
- 检测范围2.47-200ng/mL
- 灵敏度最小可检测剂量小于等于0.94ng/mL.
- 样本类型Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
- 下载 英文说明书 中文说明书
- 规格 48T96T 96T*5 96T*10 96T*100
- 价格 ¥ 3234 ¥ 4620 ¥ 20790 ¥ 39270 ¥ 323400
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产品包装(模拟)
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产品包装(模拟)
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实验结果图
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标准曲线图
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通过ISO 9001、ISO 13485质量体系认证
特异性
本试剂盒用于检测胃蛋白酶(PP)检测试剂盒(酶联免疫吸附试验法,快捷型)，经检测与其它相似物质无明显交叉反应。
由于受到技术及样本来源的限制，不可能完成对所有相关或相似物质交叉反应检测，因此本试剂盒有可能与未经检测的其它物质有交叉反应。
回收率
分别于定值血清及血浆样本中加入一定量的胃蛋白酶(PP)检测试剂盒(酶联免疫吸附试验法,快捷型)（加标样品），重复测定并计算其均值，回收率为测定值与理论值的比率。
| 样本 | 回收率范围(%) | 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
精密度用样品测定值的变异系数CV表示。CV(%) = SD/mean×100
批内差：取同批次试剂盒对低、中、高值定值样本进行定量检测,每份样本连续测定20 次，分别计算不同浓度样本的平均值及SD值。
批间差：选取3个不同批次的试剂盒分别对低、中、高值定值样本进行定量测定，每个样本使用同一试剂盒重复测定8次，分别计算不同浓度样本的平均值及SD值。
批内差： CV<10%
批间差： CV<12%
线性
在定值血清及血浆样本内加入适量的胃蛋白酶(PP)检测试剂盒(酶联免疫吸附试验法,快捷型)，并倍比稀释成1:2，1:4，1:8，1:16的待测样本，线性范围即为稀释后样本中胃蛋白酶(PP)检测试剂盒(酶联免疫吸附试验法,快捷型)含量的测定值与理论值的比率。
| 样本 | 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% |
稳定性
经测定，试剂盒在有效期内按推荐温度保存，其活性降低率小于5%。
为减小外部因素对试剂盒破坏前后检测值的影响，实验室的环境条件需尽量保持一致，尤其是实验室内温度、湿度及温育条件。其次由同一实验员来进行操作可减少人为误差。
实验流程
1. 实验前标准品、试剂及样本的准备；
2. 加样（标准品及样本）100µL，37°C温育30分钟;
3. 甩干，加检测溶液A100µL，37°C温育30分钟;
4. 洗板3次；
5. 加检测溶液B100µL， 37°C孵育10分钟；
6. 洗板5次；
7. 加TMB底物90µL，37°C孵育10－20分钟；
8. 加终止液50µL，立即450nm读数。
实验原理
本试剂盒应用竞争抑制酶联免疫分析法测定标本中待测物质水平。将胃蛋白酶(PP)检测试剂盒(酶联免疫吸附试验法,快捷型)单克隆抗体包被微孔板，制成固相载体，往包被抗体的微孔中同时加入生物素标记的抗原和待测抗原(标准品或样本)，待测抗原与生物素标记抗原对特异性抗体进行竞争结合。温育后经洗涤去掉未结合物，然后加入HRP标记的亲和素，经过温育和彻底洗涤后加入底物TMB显色。TMB在过氧化物酶的催化下转化成蓝色，并在酸的作用下转化成最终的黄色。待测标本浓度越高，标记抗原和抗体的结合就越受到抑制，显色愈浅。显色的深浅与酶量呈正相关，而与样品中待测物质含量呈负相关。用酶标仪在450nm波长下测定吸光度（O.D.值），计算样品浓度。
相关产品
| 编号 | 适用物种：Homo sapiens (Human，人) | 应用(仅供研究使用，不用于临床诊断！) |
| CPA632Hu21 | 胃蛋白酶(PP)卵白蛋白偶联物 | Immunogen; SDS-PAGE; WB. |
| CPA632Hu23 | 胃蛋白酶(PP)卵白蛋白偶联物 | Immunogen; SDS-PAGE; WB. |
| CPA632Hu22 | 胃蛋白酶(PP)卵白蛋白偶联物 | Immunogen; SDS-PAGE; WB. |
| PAA632Hu02 | 胃蛋白酶(PP)多克隆抗体 | WB; IHC; ICC; IP. |
| PAA632Hu08 | 胃蛋白酶(PP)多克隆抗体 | WB; IHC; ICC; IP. |
| PAA632Hu01 | 胃蛋白酶(PP)多克隆抗体 | WB; IHC |
| PAA632Hu09 | 胃蛋白酶(PP)多克隆抗体 | WB; IHC; ICC; IP. |
| LAA632Hu71 | 胃蛋白酶(PP)多克隆抗体(生物素标记) | WB; IHC; ICC. |
| MAA632Hu22 | 胃蛋白酶(PP)单克隆抗体 | WB; IHC; ICC; IP. |
| SEA632Hu | 胃蛋白酶(PP)检测试剂盒(酶联免疫吸附试验法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| CEA632Hu | 胃蛋白酶(PP)检测试剂盒(酶联免疫吸附试验法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| IEA632Hu | 胃蛋白酶(PP)检测试剂盒(酶联免疫吸附试验法,快捷型) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| LMA632Hu | 胃蛋白酶(PP)等多因子检测试剂盒(流式荧光发光法) | FLIA Kit for Antigen Detection. |
| KSA632Hu11 | 胃蛋白酶(PP)检测试剂盒DIY材料(酶联免疫吸附试验法) | Main materials for "Do It (ELISA Kit) Yourself". |
参考文献
| 杂志 | 参考文献 |
| 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] |
