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在临床诊断与科研探索的征途中,精准、高效的检测工具犹如指路明灯,引领我们深入生命健康的奥秘。对于内分泌领域的关键生物标志物 —— 胰岛素样生长因子 I(Insulin-like growth factors ,IGF-I),其检测的准确性与可靠性至关重要。今天,为大家重磅推荐 Demeditec 公司倾心打造的 货号DEE020: IGF-I ELISA Kit,凭借创新技术与卓越性能,为 IGF-I 检测领域注入全新活力,助力科研突破与临床精准诊断。

 

深度聚焦 IGF-I,解锁关键密码

IGF-I 在人体生长发育、细胞增殖分化以及器官功能维持等生理过程中扮演核心角色,其表达水平受多种因素调控,如生长激素(GH)、营养状态、甲状腺功能等。IGF-I 水平异常与诸多疾病紧密相连,GH 缺乏症、肢端肥大症、青春期提前或延迟、肥胖以及多种内分泌紊乱疾病都与之相关。无论是临床医生评估患者生长发育状态、诊断内分泌疾病,还是科研工作者探究生长发育机制、开展药物研发,精准测定 IGF-I 浓度都是关键起点。然而,传统检测方法面临诸多困境,IGF-I 与胰岛素样生长因子结合蛋白(IGFBP)紧密结合,分离难度大,复杂繁琐的前处理步骤不仅耗时费力,还可能导致样本损失与检测误差,难以满足高效精准检测需求。Demeditec DEE020 IGF-I ELISA Kit 应运而生,凭借独特创新技术,巧妙解决了传统检测难题,为 IGF-I 检测开辟全新途径。

 

独树一帜的技术优势

Demeditec 是一家成立于 1987 年的德国体外诊断试剂专业供应商。其免疫相关产品涵盖过敏、自身免疫、传染病等多个领域,如 IgE 检测试剂盒等。公司通过 ISO 9001 和 ISO 13485 认证,产品质量可靠,广泛应用于科研和临床诊断。

样本处理:无需复杂的酸化 - 乙醇沉淀法,采用特殊的酸性缓冲液体系,使 IGF-I 从 IGFBP 上温和解离,避免蛋白变性失活,既简化操作流程,又最大限度保留样本生物活性,减少检测误差源头,大幅提高检测结果准确性。

精准捕获与信号放大 :运用高亲和力单克隆抗体与多克隆抗体构建 “双重保障” 捕获网络,精准锚定 IGF-I 分子。结合生物素标记与链霉亲和素 - 过氧化物酶酶联反应,犹如在微观世界点燃信号篝火,微弱抗原信号瞬间被指数级放大,即便超低浓度 IGF-I 也无所遁形,轻松突破传统方法灵敏度瓶颈,实现 0.09ng/mL 的超低检测限,为早期疾病诊断、微量变化追踪提供有力武器。

零干扰:精心设计的反应体系中,过量 IGF-II 智慧 “占位”,巧妙封堵 IGFBP 的活性位点,使 IGF-I 成为酶联免疫反应舞台上的绝对主角,即使在富含 IGFBP 的复杂生物样本中,也能确保 IGF-I 与抗体特异性结合,将交叉反应率压缩至近乎为零,检测结果专一纯粹。

组分名称 规格 作用
微孔板(SORB MT) 8×12 孔 预涂层小鼠抗人 IGF-I 抗体,精准捕获样本中 IGF-I
冻干校准品(CAL A - E LYO) 5×500?L 含重组人 IGF-I,用于建立精准标准曲线,覆盖 2 - 50ng/mL 浓度范围
冻干质控品(CONTROL 1 LYO、CONTROL 2 LYO) 各 1×500?L 含人血清,分别模拟低、高浓度样本,全程质控实验过程,保障结果可靠
抗体偶联物(Ab CONJ) 1×9mL 含生物素标记山羊抗人 IGF-I 抗体,特异性识别结合 IGF-I,开启信号放大之旅
酶偶联物(ENZ CONJ) 1×12mL 含辣根过氧化物酶标记链霉亲和素,精准对接生物素标记,催化底物显色反应
样本缓冲液(SAM DIL) 1×25mL 用于样本稀释,提供酸性环境使 IGF-I 与 IGFBP 解离,同时维持体系稳定
洗涤缓冲液(20× 浓缩 WASH SOLN) 1×50mL 20 倍浓缩,充分洗涤微孔板,去除未结合成分,降低背景干扰
底物(SUB TMB) 1×12mL 含 3,3',5,5' - 四甲基联苯胺,经酶催化显色,颜色深浅与 IGF-I 含量呈正比
终止液(STOP SOLN) 1×12mL 0.2M 硫酸,终止反应,稳定显色结果,便于精确测量

宽泛的线性范围:经严谨验证,该试剂盒线性范围达 0.09 - 1050ng/mL,无论是超低浓度的微量变化追踪,还是高浓度样本的宽范围定量,都能一盒搞定,满足不同场景检测需求,避免因样本浓度差异反复稀释,提高实验效率。 

精确性 :通过严格质控,试剂盒内变异系数(Intra - assay CV)平均低于 10%,不同批次间变异系数(Inter - assay CV)也稳定控制在极低水平,确保每次检测结果高度一致,为重复实验、长期监测提供坚实数据支撑。

样本兼容性强 :全面适配人类血清、血浆样本,对肝素 / EDTA 抗凝血浆与血清检测结果具高度可比性, citrat - plasma 样本经适当调整稀释比例后也能精准检测,轻松应对临床多样本筛查。同时,对于细胞培养上清、尿液、脑脊液等复杂科研样本,在合理优化稀释方案后,也能稳定检出 IGF-I 含量,助力多维度科研探索。


Method ELISA
Tests 96
Incubation Time / Conditions 1 h, 30 min (RT/shaker), 15 min
Standard Range 2 - 50 ng/ml
Sensitivity analytical 0.09 ng/ml
Final Sample Volume 20 ?l
Sample Type serum, plasma
Sample Pretreatment dilution 1:21
Isotope / Substrate / Mode TMB 450 nm
kBq -
Internal Controls 2
Regulatory Status CE


在科研探索与临床诊断的宏大舞台上,Demeditec DEE020 IGF-I ELISA Kit 以其创新技术、卓越性能脱颖而出,宛如高精度探测仪,助力我们精准洞察 IGF-I 动态,为生命健康守护贡献力量。选择 DEE020,开启 IGF-I 检测新纪元,让精准数据为科研、诊疗决策领航!

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