| Author | Message | ||
     Digitalprints25 (Digitalprints25) Member Username: Digitalprints25 Post Number: 2 Registered: 02-2008 |
well i dont think i have found all 110 but here is a start on what you are looking for . Inorganic Matter Found in True Latent Print Deposits BASIC ELEMENT Compounds Found in True Latent Print Deposits 1. Bromine Inorganic salts 2. Calcium Inorganic salts 3. Carbon Organic substances 4. Chlorine Inorganic salts 5. Cobalt Organic substances 6. Copper Inorganic salts and organic substances 7. Fluorine Inorganic salts 8. Hydrogen Water and organic substances 9. Iodine Inorganic salts 10. Iron Inorganic salts and organic substances 11. Magnesium Inorganic salts and organic substances 12. Manganese Inorganic salts and organic substances 13. Molybdenum Organic substances 14. Nitrogen Organic substances 15. Oxygen Water and organic substances 16. Phosphorus Inorganic salts and organic substances 17. Potassium Inorganic salts 18. Sodium Inorganic salts 19. Sulfur Organic substances 20. Zinc Organic substances Organic Matter Found in True Latent Print Deposits A. Pyruvic acid B. Lactic acid C. Glycogen D. Nitrogenous compounds 1. Ammonia 2. Urea E. 3. Uric acid 4. Creatine 1. Phospholipids 5. Creatinine 2. Sterols: 6. Amino acids: a. Cholesterol a. Alanine b. Cholesterol esters b. Aspartic acid c. 7-dephydrocholesterol c. Arginine d. Lathosterol d. Cystine 3. Fatty acids e. Glutamic acid F. Water soluble vitamins: f. Glycine 1. B-complex vitamins: g. Isoleucine a. Thiamin h. Leucine b. d-riboflavin i. Lysine c. Folic acid j. Methlonine d. Choline k. Serine e. Pyrodoxin l. Threonine f. Niacin m. Valine g. p-aminobenzoic acid n. Phenylalanine h. Inositol o. Tyrosine i. Pantothenic acid p. Histidine 2. Ascorbic acid (Vitamin C) q. Proline r. Amino-butyric acid s. Citrulline t. Ornithine u. Taurine Other matter, yet to be identified, is known to be present. Nicotine, morphine, alcohol and fluoride may also be found in some deposits. | ||
| Webservant (Member) Moderator Username: Member Post Number: 215 Registered: 03-1997 |
A Google search (search for "110 amino acids" eccrine glands) mentions 110 amino acids... perhaps where the 110 number comes from. Although only eccrine glands occur on human friction ridge skin, eccrine glands should never be assumed to be the sole source for chemicals deposited in latent prints. In modern forensic science the term "latent prints" refers to any chance or accidental impression deposited at a crime scene or on an item of evidence. It matters not whether the matrix deposited is only from natural secretions of the eccrine glands, invisible before development/examination or visible to the naked eye with no development. In real world casework, it is common for latent finger and palm impressions to include transfer deposits of dirt, ink, paint and all manner of body fluids including blood, saliva, nasal secretions, seminal and vaginal fluids. Thus, you may legitimately include any and all human secretion/excretion chemicals among the list of latent print residues. | ||
| Kara Simms (Csiintraining) Member Username: Csiintraining Post Number: 1 Registered: 01-2007 |
I am a Forensics major and I am currently taking a class called Advanced Latent Chemistry. Our professor told us to find the 110 chemicals that our bodies naturally excrete and leave as latent print residue. This isn't an assigment he grades, simply something for our benefit. I have searced for days for this list, though I only seem to be coming up with lipids, amino acids, salt and water. None of my sources seem to go into specifics as to what is left in our latent prints. Can anyone help? If so, it would be greatly appreciated. |
