1000ug/mL ARSENIC (+3) 30mL

Name: 1000ug/mL ARSENIC (+3) 30mL
Brand: Inorganic Ventures
SKU: CGAS(3)1-30ML
Price: 29.26 GBP
Availability: InStock

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SKU: CGAS(3)1-30ML

Vendor: Inorganic Ventures

Categories:

1000ppm Inorganic standards

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Description/ Intended use

Speciation has been defined as ‘the distribution of an element amongst defined chemical species in a system’. Chemical species include isotopic composition, electronic or oxidation states and molecular structures. Speciation analysis is the analytical process of identifying and/or measuring the amounts of one or more individual chemical species in a sample.

Why is speciation important?
Speciation analysis has become important for food, environmental, and pharmaceutical industries, where simply measuring the total amount of an element is insufficient. Identifying the different species and concentrations of those species provides a more informed understanding of the environmental or health related impact associated with a particular sample. The clinical or environmental approach would be very different depending on the concentration of the toxic species. For example, an exposure to toxic inorganic arsenic (arsenite and arsenate) is a much bigger concern than an exposure to the mildly toxic organic arsenic species. In contrast, organic mercury species are more toxic than inorganic mercury species, so an exposure to methylmercury or ethylmercury poses a more severe health risk.

How is speciation analysis performed?
IC-ICP-MS provides a complete inorganic elemental analysis solution for speciation analysis.

-Metal-free ion chromatography (IC) separates the individual ionic species without contributing trace metal contamination
-Ion Chromatography-Inductively Coupled Plasma Mass Spectrometry (IC-ICP-MS) performs trace elemental detection and quantification

Metal-free IC (with high resolution ion exchange columns and simple online connectivity) together with high sensitivity ICP-MS and integrated software are a powerful combination for fast and efficient metal speciation.

Arsenic

Location: Group 15, Period 4
Atomic Weight: 74.9216
Coordination Number: 6
Chemical Form in Solution: H₃AsO₄ and HAsO₂

Storage & Handling: Keep tightly sealed when not in use. Store and use at 20 ± 4°C. Do not pipet from container. Do not return portions removed for pipetting to container.

Chemical Compatibility: Arsenic has no cationic chemistry. It is soluble in HCl, HNO₃,H₃PO₄, H₂SO₄ and HF aqueous matrices water and NH₄OH. It is stable with most inorganic anions (forms arsenate when boiled with chromate) but many cationic metals form the insoluble arsenates under pH neutral conditions. When fluorinated and/or under acidic conditions arsenate formation is typically not a problem at moderate to low concentrations.

Stability: 2-100 ppb levels - stable for months alone or mixed with other elements at equivalent levels - in 1% HNO₃ / LDPE container. 1-10,000 ppm solutions chemically stable for years in 1-5% HNO₃ / LDPE container.

As Containing Samples (Preparation & Solution): Metal (soluble in 1:1 H₂O / HNO₃); Oxides (the oxide exists in crystalline and amorphous forms where the amorphoric form is more water soluble. The oxides typically dissolve in dilute acidic solutions when boiled); Minerals (one gram of powered sample is fused in a Ni⁰ crucible with 10 grams of a 1:1 mix of K₂CO₃ and KNO₃ and the melt extracted with hot water); Organic Matrices (0.2 to 0.5 grams of the sample are fused with 15 grams of a 1:1 Na₂CO₃ / Na₂O₂ mix in a Ni⁰ crucible. The fuseate is extracted with water and acidified with HNO₃).

Atomic Spectroscopic Information: (red text indicates severe at ~ concs.)

Technique / Line	Estimated D.L.*	Order	Type	Interferences
ICP-OES 189.042 nm	0.05/.005 µg/mL	1	atom	Cr
ICP-OES 193.696 nm	0.1/.01 µg/mL	1	atom	V, Ge
ICP-OES 228.812 nm	0.1/.01 µg/mL	1	atom	Cd, Pt, Ir, Co
ICP-MS 75 amu	30 ppt	n/a	M⁺	⁴⁰Ar³⁵Cl, ⁵⁹Co¹⁶O, ³⁶Ar³⁸Ar¹H, ³⁸Ar³⁷Cl, ³⁶Ar³⁹K, ¹⁵⁰Nd²⁺, ¹⁵⁰Sm²⁺
*ICP-OES D.L.'s are given as radial / axial view
Arsenic (As) Standards In Our Store

Product Specifications

Part #:

CGAS(3)1-30ML
Description:

1000ug/mL ARSENIC (+3) 30mL
Matrix:

0.5% v/v Hydrochloric Acid (0.3% w/v Sodium Hydroxide / 0.06% w/v Sodium Bicarb.)
Starting Material:

As₂O₃

Every Inorganic Ventures CRM is sold in patented TCT packaging giving your product up to 3 years shelf life. Read more...

- Analyte
- µg/mL
- As⁺³
- 1000

Documentation:

Associated Certifications: ISO 17034 | ISO 17025

Only Inorganic Ventures can give you ALL of these.....

✔ Traceable to NIST SRMs
✔ Produced under ISO 17025
✔ Produced under ISO 17034

✔ Assayed by validated wet chemical procedures
✔ Assayed by validated ICP-OES procedures
✔ Trace metallic impurities determined by ICP and ICP-MS

And up to 3 YEARS SHELF LIFE with TCT packaging