环丙沙星_单标_有机类_标准物质_萘析商城

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环丙沙星

BW905010

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85721-33-1

100mg

秦境

99.8%

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环丙沙星介绍：

Reference Material

This certificate is designed in accordance with ISO17034 and ISO Guide 31. This reference material (RM) was designed,produced andverified in accordance with ISO/IEC 17025, ISO 17034 and a registered qualitymanagement system ISO9001.

Product Name	Ciprofloxacin
Product Code	BW905010
Lot Number	23061533
CAS No.	85721-33-1
Mol. Formula	C₁₇H₁₈FN₃O₃
Mol. Weight	331.34
Certified on	2 Jun 2023
Expiry Date	1 Jun 2025
Storage Temp	20°C ± 4°C
Specification	100 mg

CERTIFIED

Purity

CERTIFIED

Expanded Uncertainty (U)

Approved by

99.8%

0.5%

Uncertainty

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

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

Intended Use

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

Safety

Proper precautions should be observed whilehandling. See Safety Data Sheet.

Traceability

The balances used for gravimetric measurements arecalibrated with weights traceable to the national standards (DKD). Thecalibration of the balances is verified daily internally and annually by anexternal7 accredited calibration service. Chromatographic methods are traceableto the International System of Units (SI).

Homogeneity

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

Storage

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

Instructions for use

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

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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：食品安全国家标准动物性食品中环丙沙星残留量的测定高效液相色谱-串联质谱法

适用范围	适用于猪、牛、羊、鸡等动物肌肉、肝脏、肾脏、脂肪及水产品中环丙沙星残留量的检测。
核心检测方法	采用高效液相色谱-串联质谱法（HPLC-MS/MS），通过同位素内标法进行定量分析，确保检测准确性。
检出限与定量限	检出限（LOD）为0.5 μg/kg，定量限（LOQ）为1.0 μg/kg，满足痕量残留检测需求。
质控样品要求	需包含空白样品、空白加标样品及实际样品平行实验，加标浓度需覆盖定量限至标准曲线最高点。
关键实验步骤	样品经乙腈提取后，通过C18固相萃取柱净化，氮吹浓缩后复溶进样，色谱分离采用反相C18柱。
特别说明	需注意基质效应对检测结果的影响，需通过基质匹配标准曲线进行校正。

行业标准：进出口动物源性食品中环丙沙星残留量的检测方法液相色谱-质谱/质谱法

适用范围	适用于进出口肉类、水产品及乳制品中环丙沙星残留量的检测。
核心检测方法	液相色谱-串联质谱法（LC-MS/MS），采用外标法定量，前处理包含酸化乙腈提取及HLB柱净化。
检出限与定量限	检出限为0.3 μg/kg，定量限为1.0 μg/kg，灵敏度优于同类方法。
质控样品要求	每批次样品需包含10%的平行样及加标回收实验，回收率应控制在70%-120%。
关键实验步骤	样品经磷酸盐缓冲液均质后，用酸化乙腈提取，HLB柱净化，流动相为乙腈-0.1%甲酸水溶液梯度洗脱。
特别说明	需监控色谱柱柱效变化，当理论塔板数下降超过20%时应更换色谱柱。

国家标准：动物源产品中喹诺酮类残留量的测定液相色谱-串联质谱法

适用范围	涵盖动物源性食品（包括蜂蜜）中环丙沙星等12种喹诺酮类药物残留的检测。
核心检测方法	液相色谱-串联质谱法（LC-MS/MS），采用多反应监测（MRM）模式提高选择性。
检出限与定量限	环丙沙星的LOD为0.2 μg/kg，LOQ为0.5 μg/kg。
质控样品要求	每批样品需设置阴性对照、阳性对照及过程空白，阳性对照加标量为LOQ水平。
关键实验步骤	样品经EDTA-Mcllvaine缓冲液提取后，用Oasis HLB柱净化，流动相为甲醇-0.1%甲酸水溶液。
特别说明	蜂蜜样品需额外进行酶解处理以消除糖类物质干扰。

以上信息仅供参考，请以相应标准的原文为准！