Sahli's Haemoglobinometer
Scope and Contents
This was a very inaccurate way of measuring a patient's haemoglobin. It was popular until the early 1950's, particularly in Europe and the USA, because it seemed quick and easy. A drop of blood was mixed with hydrochloric acid and converted to acid haematin. The mixture was diluted until it seemed by eye to match a coloured glass standard. It was later found that results were often up to 20% out, usually high, compared to subsequent methods.
Biographical / Historical
Boxed made by Hawksley Crista, London. British neurologist William Gowers (1845-1915) invented the haemoglobinometer in 1875. It rapidly tested the amount of haemoglobin in blood by comparing its colour with a reference tube. Haemoglobin is the part of the blood responsible for carrying oxygen around the body. It is essential for a healthy diet. The Sahli haemoglobinometer was devised by Hermann Sahli (1856-1933). It was made by Hawksley and Sons Limited in London.
Language of Materials
English
Existence and Location of Originals
on display in museum
Repository Details
Part of the Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust Repository
Addenbrooke’s Hospital, Cambridge
Box 268
Cambridge University Hospitals NHS Foundation
Hills Road, Cambridge CB2 0QQ United Kingdom
+441223 586737
cuh.addenbrookesarchive@nhs.net