DRE-C15880000

Artlcle Name: Parathion-ethyl

Formula:C10H14NO5PS

Mol. Weight:291.27

CAS No.:56-38-2

Storage Temperature:-18℃±4℃

Storage and handling The RM should be stored in the original sealed bottle at the temperatur given above.After use the bottle should be tightly closed and protected from moisture and light. The expirydate is valid for origimal sealed bottles under recommended storage conditions only.

Purity:99.06% (g/g)

Expanded Uncertainty U= 0.97% (g/g)

The uncertainty of this standard is alauiated in accordance with the IS0 Guide 34 and EURACHEM/CTAC Guide.Quantifying Uncertainty in Analytical Measurement, Second Edition. The expandeduncertainty is U(exp) = u(RM)x k where k is the coverage factor at the 95% confidence level (k=2).Uncertainty u(RM) is based on the combination of the uncertainties associated with each individualoperation involved in the analysis of the product: u(RM) =√u{char)²+ u(bb)²+ u(lts)²+ u(sts)²;u(char) is the uncertainty of purity determination; u(bb) uncertainty of homogeneity test; u(ts) uncertaintyof stability test long-term; ulsts)uncetainty of stability test short-term. U([ts) and u(sts) are not induded in the calculation as the stability! sta tement is based on real evidence opposed to simulation.

Minimum sample: 1 mg is recommended as the minimal sample amount If less materialis used,it is recommended to increase the certified uncertainty by a factor of two for half sample and a factor offour for a quarter of sample.

Intended use: Use this RM as Calibrent for chromatography or any other analytical technique.

Analytlal Data

Traceability of chromatography: To the lintemational System of Units (SI).

Instrument:HCLP/DAD
Detection:DAD
Column:ReproSil 100 C185 um 250 x 3 mm
Inj-Vol.:10 μl
Flow:1.0 ml/min
RetTime:11.79min

Method Details
Eluent A: Acetonitrile;H2O 2:3 for 1 min
Eluent B: Acetonitrile:H20 9:1 for 5 min
Eluent A→ Eluent B: 16 min

Comment
Traceabillty: The balances used are caibrated with weights traceable to the national standards (DKD).

Calibrated class A glassware is used for voumetric measurements.

Certificate Revision 1

Water Content: 0.56% (g/g) by Kalr-Fischer -Tieration (U(exp) = 0.03% (g/g)).

No chromatogram available.

ldentity: EA, NMR, RT, IR VS

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 ofthe 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 theminimum sample size and if lessmaterial is used, to increase thecertified uncertainty by a factor of twofor half sample and four for a quarterof sample. If storage after opening is
necessary, the RM should be tightlyclosed and kept from light andmoisture. If the RM was in a sealedampoule, it should be transferred to avial with minimum head space. Visit the support section of our ebsitelgcstandards.com for a series ofDr. Ehrenstorfer Tech Tip videos and Ehrenstorferfrequently asked questions.

注：以上信息仅供参考，以产品附带证书为准。