1. Home>
  2. Search IRUG Spectral Database>
  3. Interactive IRUG Spectrum

Interactive IRUG Spectrum

Section: 7 Mixtures (MX) Page: 153

 Copyright © 1993-2025 Infrared and Raman Users Group (IRUG)


Details

IRUG filename:
IMX00153
Data type:
Infrared
IRUG material class:
Mixtures (MX)
Sample type:
Reference material
Common name(s):
Spider speck, excrement, droppings, largely guanine
Sample source 1:
Under spiderweb
Source location 1:
IMA Conservation Science Lab, 4000 Michigan Rd, Indianapolis, IN 46208, US
Sample identifier 1:
Spider dropping
Color:
White, medium, opaque
Age:
2022, acquired, naturally aged
Application:
MFTIR (Fourier transform infrared microspectroscopy)
Mode:
Tran
Literature Reference:
JF Anderson, The excreta of spiders, Comp Biochem Physiol. 1966 Mar;17(3):973-82
Originating institution name:
Indianapolis Museum of Art at Newfields
Originating institution acronym:
IMA
CAS registry no:
73-40-5 (for guanine phase)