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菲_85-01-8,菲
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BW901094 {{goodObj.price > 0 ? '¥' + goodObj.price : '咨询'}} ¥{{goodObj.sell_price || 0}} 咨询 85-01-8 10mg {{goodObj.date}} 秦境 {{item.norm}} 99.0% {{inventory}}
菲介绍:

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

Phenanthrene

Product Code

BW901094

Lot Number

23081501

CAS No.

85-01-8

Mol. Formula

C14H10

Mol. Weight

178.23

Certified on

4 Aug 2023

Expiry Date

4 Aug 2028

Storage Temp

20°C ± 4°C

Specification

10mg

CERTIFIED

Purity

CERTIFIED

Expanded Uncertainty (U)

Approved by

99.0%

1.0%

Uncertainty

The certified value(s) and uncertainty(ies) aredetermined in accordance with ISO 17034 with an 95% confidence level (k=2). Uncertaintyis based on the Total Combined Uncertainty, including uncertainties ofcharacterisation, 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.


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国家标准GB 11895-1989《水质 苯并(a)芘的测定 乙酰化滤纸层析荧光分光光度法》解读
标准名称及标准号 GB 11895-1989《水质 苯并(a)芘的测定 乙酰化滤纸层析荧光分光光度法》
适用范围 适用于地表水、地下水、生活污水及工业废水中菲等多环芳烃类物质的检测,目标物浓度范围为0.001~10 μg/L。
核心检测方法 采用乙酰化滤纸层析分离富集目标物,结合荧光分光光度法进行定量分析,通过特征荧光光谱峰进行定性确认。
检出限与定量限 菲的检出限为0.001 μg/L,定量限为0.003 μg/L,校准曲线线性范围需覆盖实际样品浓度的50%~150%。
质控样品要求 每批次需包含空白样品、加标回收样和平行样,加标回收率应控制在80%~120%,相对标准偏差≤15%。
关键实验步骤 1. 水样用正己烷液液萃取,浓缩至1 mL
2. 乙酰化滤纸层析分离干扰物
3. 荧光分光光度计在激发波长295 nm、发射波长405 nm条件下测定
特别说明 实验需在避光条件下操作,玻璃器皿需经马弗炉400℃灼烧4小时去除有机污染物,测定时环境温度需稳定在25±2℃。

以上信息仅供参考,请以相应标准的原文为准!