It is difficult to obtain an accurate concentration of a haemoglobin in a blood sample without using cyanmet reagent. Regarding this, which ONE of the following statements is INCORRECT? Oxy- and deoxy-haemoglobin have different absorbance peaks at 540 nm. There are many different types of haemoglobin in a sample of blood. After Cyanmet treatment, all forms of haemoglobin are converted to cyanmethaemoglobin. The absorbance spectra for cyanmethaemoglobin is the same as for deoxy-haemoglobin as the ferrous ions in the haem groups have been oxidised in the oxy-haemoglobin. Cyanmethaemoglobin is formed from methaemoglobin which has been treated with cyanide.

It is difficult to obtain an accurate concentration of a haemoglobin in a blood sample without using cyanmet reagent. Regarding this, which ONE of the following statements is INCORRECT? Oxy- and deoxy-haemoglobin have different absorbance peaks at 540 nm. There are many different types of haemoglobin in a sample of blood. After Cyanmet treatment, all forms of haemoglobin are converted to cyanmethaemoglobin. The absorbance spectra for cyanmethaemoglobin is the same as for deoxy-haemoglobin as the ferrous ions in the haem groups have been oxidised in the oxy-haemoglobin. Cyanmethaemoglobin is formed from methaemoglobin which has been treated with cyanide.