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菲

BW901094

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85-01-8

10mg

秦境

99.0%

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菲介紹：

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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手機(jī)版：菲

本公司銷售的所有產(chǎn)品僅供實(shí)驗(yàn)科研使用，不用于人體及臨床診斷。

國家標(biāo)準(zhǔn)GB 11895-1989《水質(zhì) 苯并(a)芘的測定乙酰化濾紙層析熒光分光光度法》解讀

標(biāo)準(zhǔn)名稱及標(biāo)準(zhǔn)號	GB 11895-1989《水質(zhì) 苯并(a)芘的測定乙酰化濾紙層析熒光分光光度法》
適用范圍	適用于地表水、地下水、生活污水及工業(yè)廢水中菲等多環(huán)芳烴類物質(zhì)的檢測，目標(biāo)物濃度范圍為0.001~10 μg/L。

核心檢測方法

采用乙酰化濾紙層析分離富集目標(biāo)物，結(jié)合熒光分光光度法進(jìn)行定量分析，通過特征熒光光譜峰進(jìn)行定性確認(rèn)。

檢出限與定量限

菲的檢出限為0.001 μg/L，定量限為0.003 μg/L，校準(zhǔn)曲線線性范圍需覆蓋實(shí)際樣品濃度的50%~150%。

質(zhì)控樣品要求

每批次需包含空白樣品、加標(biāo)回收樣和平行樣，加標(biāo)回收率應(yīng)控制在80%~120%，相對標(biāo)準(zhǔn)偏差≤15%。

關(guān)鍵實(shí)驗(yàn)步驟

1. 水樣用正己烷液液萃取，濃縮至1 mL
2. 乙酰化濾紙層析分離干擾物
3. 熒光分光光度計在激發(fā)波長295 nm、發(fā)射波長405 nm條件下測定

特別說明	實(shí)驗(yàn)需在避光條件下操作，玻璃器皿需經(jīng)馬弗爐400℃灼燒4小時去除有機(jī)污染物，測定時環(huán)境溫度需穩(wěn)定在25±2℃。

以上信息僅供參考，請以相應(yīng)標(biāo)準(zhǔn)的原文為準(zhǔn)！