Reactive Cyanide in Soi

Catalog Number：SQCI-013

Spike Matrix： Dilute NaOH

Hazards： Iritant

Analyte：Reactive Cyanid

Study Mean (mg/kg)   NR  NR = Not Reported

Gravimetric Concentration (mg/kg)   200±0.920

Acceptance Limits (mg/kg)   20.0 - 270

This quality control sample was manufactured by NSI Lab Solutions fllowing quality procedures meeting the requirements of ISO 9001,ISO 17025, and ISO 17034. Acceptance limits are set at current NELAC standards. The study mean is set at the mean of an interlaboratory proficiency testing study with outier rejectin. This sample is intended to be used to validate analytical methods, for detection limit studies, and analyst proficiency testing.

Storage & Instructions For Use

Store the spike concentrate at 2-8°C. The blank soil matrix can be stored at 15-30℃.

The soil is to be extracted/digested and analyzed using an appropriate extraction and analytical method for Reactive Cyanide, assuming a 25 g sample will contain sufficient Cyanide for determination.

The sample has been buffered to stailie the Cyanide.

Some methods may require a pH adjustment to 7 prior to analyze.

Weigh 25 g of the blank soil matrix and place in extraction vessel.

Open the spiking ampule and add 1 mL of solution directly to the blank soil matrix.

The sample is now ready for immediate analysis.

Report your resuts as mg/kg based on 25 g of soil. Do not correct the analyical resuts for matrix spike recovery bias.

Traceability Information

Analyte Source Materials： The highest purity analyte source materials are used in the manufacture of this sample.

Balance： All analytical balances are calibrated on a semiannual basis by an ISO 17025 accredited calibration laboratory and are traceable to NIST. Traceable Calibration Certificate available upon request.

All balances are checked daily by an in-house standard operating procedure. The weights used for this daily verification are calibrated annually by an IsO 17025 accredited calibration laboratory and are certified traceable to NIST. Cerificate of Calibration and Traceability available upon request.

Thermometer： All thermometers are NIST traceable through thermometers that are calibrated annually by an ISO 17025 accredited calibration laboratory.

Glassware： All glassware used in the manufacture of our samples is Class A. An in-house standard operating procedure is used to verify all glassware prior to it being placed into service. Volumetric pipetors are calibrated every four months by an ISO 17025 accredited calibration laboratory.

Homogeneity/Stability/Expiration

This quality control sample was thoroughly mixed in production. Batch homogeneity was established through analyses of samples chosen at random. The stability of this quality control sample is based on short-term and long-term monitoring of the certified concentration. The expiration date is guaranteed to be valid from the manufacture date and is based on results of long-term monitoring.

Uncertainty

The±uncertainty associated with the certifed concentration is the expanded uncertainty at 95% confidence interval (CI) with K=2. This expanded uncertainty incorporates contributions from manufacturing, homogeneity, and stability.

注：证书信息仅供参考，以产品附带证书为准。