产品说明
一般描述
Chromium, an essential trace element, is a transition metal that primarily exists in two stable oxidation states, hexavalent [Cr(VI)] and trivalent [Cr(III)]. Chromium is widely used in various industries such as electroplating, leather tanning, chrome paint, dying, hardened steel, ceramic, and glass. Cr(VI) is produced almost exclusively by industrial processes; whereas, in nature chromium primarily exists in its trivalent form. Cr(III) is generally regarded as nontoxic due to its poor absorption. Cr(VI) is considered a pulmonary carcinogen and has tested positive in genotoxicity tests. Cr(VI) is considered a serious pollutant in many water streams due to its carcinogenic potential. In trace amounts, Cr(III) may be required for glucose and lipid metabolism.
特点和优势
Compatible with high-throughput handling systems. Can be adapted for use with cuvettes.
适用性
该试剂盒适于检测生物、环境、食品、饮料样品中的铬含量。
原理
In this kit, chromium is determined in a simple, one-step assay in which Cr(VI) forms a specific complex with a chromgenic dye, resulting in a colorimetric (480 nm) product, proportional to the chromium present. Cr(III) can be converted to Cr(VI) with nitric acid/hydrochloric acid, allowing the determination of Cr(III) and/or total chromium [Cr(III) +Cr(VI)].
基本信息
NACRES | NA.84 |
产品性质
用途 | sufficient for 250 colorimetric tests |
detection method | colorimetric |
储存温度 | −20℃ |
安全信息
象形图 | |
警示用语: | Danger |
危险声明 | H290 - H312 + H332 - H315 - H318 - H360D - H410 |
预防措施声明 | P273 - P280 - P302 + P352 + P312 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313 |
危险分类 | Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Met. Corr. 1 - Repr. 1B - Skin Irrit. 2 |
储存分类代码 | 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects |
WGK | WGK 3 |
Sigma-Aldrich