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Key Documents

ICS045

Supelco

Formaldehyde Standard

certified reference material

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About This Item

UNSPSC Code:
41116107
NACRES:
NA.24
Pricing and availability is not currently available.

grade

certified reference material

Quality Level

300

CofA

current certificate can be downloaded

manufacturer/tradename

RTC ICS-045-100

concentration

1000 μg/mL in H2O

technique(s)

ion chromatography: suitable

application(s)

environmental
food and beverages

format

single component solution

storage temp.

2-30°C

General description

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Other Notes

Values of analytes vary lot to lot. Some lots may not contain all analytes.

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H350

Hazard Classifications

Carc. 1B

Storage Class Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number

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Questions

1–7 of 7 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. Does this product already contain 2,4-DNPH or has 2,4-DNPH only been added to the product for CoA testing?

    1 answer

    1. This product does not contain 2,4-Dinitrophenylhydrazine (2,4 DNPH). (2,4 DNPH) was used as a derivatizing agent for QC analysis.

      Helpful?

  4. Why there are 2,4-DNPH and Formaldehyde-2,4-DNPH on HPLC result in CoA? Why there is no Formaldehyde on the result of HPLC.

    1 answer

    1. Formaldehyde cannot be detected by HPLC without derivatization. Therefore, the formaldehyde-DNPH is the derivatized material and is what is being analyzed and reported. The 2,4-DNPH is the excess derivatizing agent.

      Helpful?

  5. Does Product ICS045 contain methanol as a stabilizer?

    1 answer

    1. This product does have methanol in it

      Helpful?

  6. The CoA for the lot purchased lists the raw material potency as 35.2%, what is the purpose of this value? If I want to make a calibration curve using this, do I need to take this number into account? Or am I just using the 1000 mg/L for calculations?

    1 answer

    1. Raw material purity is included for traceability to the raw material. In some cases, it can also explain any low-level impurities that a customer might see in the provided chromatogram. Please use the certified value directly. No correction of the certified value is needed. It has already been corrected for the raw material purity.

      Helpful?

  7. hola, con respecto al producto ICS045, me gustaría saber que concentración tiene de formaldehído, puesto que en la información del producto pone 1000ug/ml y en el certificado de origen de ejemplo que se puede descargar, pone 1000mg/l.

    1 answer

    1. As listed in the properties section on the website, the concentration is 1000 μg/mL in H2O. The 1000 μg/mL may be converted to 1 mg/mL. Thus, the 1000mg/L reported in the Certificate is also correct.

      Helpful?

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