• 欢迎来到萘析商城
D-葡萄糖_50-99-7
图片仅供参考,具体产品以实物为准!

D-葡萄糖

BW09038 {{goodObj.price > 0 ? '¥' + goodObj.price : '咨询'}} ¥{{goodObj.sell_price || 0}} 咨询 50-99-7 500mg {{goodObj.date}} 秦境 {{item.norm}} 99.0% {{inventory}}
D-葡萄糖介绍:

Reference Material

This certificate is designed in accordance with ISO 17034 and ISO Guide 31. This reference material (RM) was designed,produced and verified in accordance with ISO/IEC 17025, ISO 17034 and a registered quality management system ISO9001.

Uncertainty

The certified value(s) and uncertainty(ies) are determined in accordance with ISO 17034 with an 95% confidence level (k=2). Uncertainty is based on the Total Combined Uncertainty, including uncertainties of characterisation, homogeneity and stability testing. Stability values are based on real evidence opposed to simulation.

The producer certifies that this reference material meets the specification stated in this certificate until the expiry date, provided it is stored unopened at the recommended temperature herein. Product warranties for this reference material are set out in the terms and conditions of purchase.

Intended Use

This RM is intended for use in a laboratory as a calibration and quality control standard or in method development for analytical techniques.

Safety

Proper precautions should be observed while handling. See Safety Data Sheet.

Traceability

The balances used for gravimetric measurements are calibrated with weights traceable to the national standards (DKD). The calibration of the balances is verified daily internally and annually by an external accredited calibration service. Chromatographic methods are traceable to the International System of Units (SI).

Homogeneity

Random replicate samples of the final packaged RM have been analysed to prove homogeneity compliant with ISO 17034.

Storage

The RM should be stored in the original sealed container at the indicated temperature.

Instructions for use

It is recommended to use 1 mg as the minimum sample size and if less material is used, to increase the certified uncertainty by a factor of two for half sample and four for a quarter of sample. If storage after opening is necessary, the RM should be tightly closed and kept from light and moisture. If the RM was in a sealed ampoule, it should be transferred to a vial with minimum head space.


您正在浏览的产品:D-葡萄糖

手机版:D-葡萄糖

本公司销售的所有产品仅供实验科研使用,不用于人体及临床诊断。

国家标准解读:《食品安全国家标准 食品中果糖、葡萄糖、蔗糖、麦芽糖、乳糖的测定》
标准名称及标准号GB 5009.8-2016
适用范围适用于食品中葡萄糖、果糖、蔗糖、麦芽糖和乳糖的检测,包括液态乳、果汁、蜂蜜等样品。
核心检测方法高效液相色谱-示差折光检测法(HPLC-RID),通过色谱峰保留时间定性,峰面积定量。
检出限与定量限葡萄糖的检出限(LOD)为0.1 g/kg,定量限(LOQ)为0.3 g/kg。
质控样品要求需使用已知浓度的葡萄糖标准品进行校准,每批次检测需包含空白对照及加标回收率实验,回收率应控制在85%-115%。
关键实验步骤1. 样品前处理(提取、离心、过滤);
2. 色谱条件优化(流动相为乙腈-水,流速0.6 mL/min);
3. 标准曲线绘制;
4. 结果计算与数据修约。
特别说明若样品含复杂基质(如高脂肪或高蛋白),需增加净化步骤;避免使用含糖溶剂,防止背景干扰。
行业标准补充:《食品中葡萄糖的测定 酶-比色法和酶-电极法》
标准名称及标准号GB/T 16285-2008
适用范围适用于食品及生物样品中葡萄糖的快速检测,适合大批量筛查。
核心检测方法酶-比色法:葡萄糖氧化酶催化生成过氧化氢,通过显色反应测定吸光度;酶-电极法则基于电流信号变化。
检出限与定量限酶-比色法的LOD为0.05 g/kg,LOQ为0.15 g/kg;酶-电极法的LOD为0.03 g/kg。
质控要求酶活性需定期验证,显色剂需避光保存,电极需校准后使用。
特别说明酶法易受温度影响,需控制反应条件在25±1℃;高浓度抗坏血酸可能导致负干扰。

以上信息仅供参考,请以相应标准的原文为准!