Determination of chromium(VI) in black, green and herbal teas

► A method has been introduced that can be used to determine Cr(VI) in all types of tea. ► The need of determining Cr(VI) in tea samples is highlighted as some teas contains representable levels of this element. ► It has also been shown that black tea contains higher levels of chromium whereas herbal contains less Cr content. ► The amount of Cr(VI) that could be consumed per unit cup of tea is highlighted.