联苯菊酯_单标_有机类_标准物质_萘析商城

图片仅供参考，具体产品以实物为准！

联苯菊酯

BW902020

~~{{goodObj.price > 0 ? '￥' + goodObj.price : '咨询'}}~~

￥{{goodObj.sell_price || 0}} 咨询

82657-04-3

100mg

秦境

99.9%

猜您喜欢

丙酮中联苯菊酯溶液
BW04676 | 100μg/mL
甲醇中联苯菊酯溶液
BW03435 | 1000μg/mL
正己烷中联苯菊酯溶液标准物质
BW03084 | 100μg/mL
正己烷中联苯菊酯溶液标准物质
BW03090 | 1000μg/mL
丙酮中联苯菊酯溶液
BW04677 | 1000μg/mL
丙酮中联苯菊酯溶液标准物质
GBW(E)085201 | 100μg/mL
丙酮中联苯菊酯溶液标准物质
GBW(E)085200 | 1000μg/mL

联苯菊酯介绍：

Method of Characterisation

GC/FID

Batch Information

Water Content: <0.1% (by Karl-Fischer-Titration)

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 are basedon 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.

您正在浏览的产品：联苯菊酯

手机版：联苯菊酯

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。

标准名称及标准号

标准名称：食品安全国家标准植物源性食品中联苯菊酯残留量的测定气相色谱-质谱法
标准号：GB 23200.113-2018

适用范围

本标准适用于植物源性食品（包括蔬菜、水果、谷物等）中联苯菊酯残留量的定性及定量测定。检测基质包括新鲜或加工后的农产品，适用基质需符合前处理方法的兼容性要求。

核心检测方法

方法描述：样品经乙腈提取，通过分散固相萃取（QuEChERS）净化，使用气相色谱-质谱联用仪（GC-MS）进行检测。采用选择离子监测模式（SIM）进行定性，外标法定量。

检出限与定量限

检出限（LOD）：0.005 mg/kg
定量限（LOQ）：0.01 mg/kg
注：实际检出限可能因仪器灵敏度与样品基质差异略有波动，需通过方法验证确认。

质控样品要求

1. 每批次样品需包含空白对照、加标回收样（加标浓度为LOQ水平与中浓度水平）；
2. 回收率范围要求为70%-120%，RSD≤15%；
3. 质控样品应与待测样品同步处理和分析。

关键实验步骤

1. 样品提取：均质样品后，用乙腈振荡提取，加入氯化钠分层；
2. 净化：提取液经PSA和C18吸附剂分散固相萃取净化；
3. 仪器条件：色谱柱为DB-5MS（30 m×0.25 mm×0.25 μm），柱温程序升温，离子源温度230℃，四级杆温度150℃；
4. 定量分析：以基质匹配标准曲线校准，避免基质效应干扰。

特别说明

1. 联苯菊酯易光解，样品前处理需避光操作；
2. 复杂基质（如含色素或脂类样品）需增加净化步骤或调整吸附剂比例；
3. 若检测结果接近定量限，建议采用同位素内标法复核以提高准确性。

以上信息仅供参考，请以相应标准的原文为准！