Plant Growth Regulator Residue Testing

Plant growth regulators (PGR) are a class of small molecule compounds with plant hormone activity that can affect plant growth and development. Such compounds are often used to enhance plant resistance, promote plant cell division and growth, increase yield, and improve quality. There are many types of growth regulators with different properties. However, as a chemical substance, plant growth regulators also have certain toxicity. In crop production, the wrong application of plant growth regulators, such as blind or excessive use, may affect the quality and safety of agricultural products, reduce production, and even pose a potential threat to public health.

At present, many countries and regions have successively formulated corresponding maximum residue limits (MRL) standards for plant growth regulators, which are used as restrictions on agricultural trade between countries. For the import and export of products and to protect the health and safety of producers and consumers, PGR testing is particularly important.

Plant Growth Regulator Residue Testing Items are listed below:

Abscisic acid, ABA
Choline Chloride
Chlormequat chloride
Cloprop
Cyclanilide
Daminozide
Forchlorfenuron
Gibberellic acid (GA3)
Inabenefide
Indole-3-ylacetic (IAA)
Mepiquat chloride
Paclobutrazol
Thidiazuron
Trinexapac-ethyl
Triapenthenol
Uniconazole
1-Naphthaleneacedic (NAA)
2,3,5-Triiodobenzoic acid (TIBA)
4-Chlorophenoxyacetic acid
6-Benzylaminopurine (6-BA)

Plant Growth Regulator Residue Testing Service Technology Platform
Sample pretreatment:

The quick, easy, cheap, effective, rugged and safe (QuEChERS) method
Solid phase extraction (SPE)
Liquid phase extraction (LPE)
Sample detection technology:

Gas chromatography-mass spectrometry (GC-MS)
The detection limit is 3.0~8.0μg/kg, and the quantification limit is 10.0~25.0μg/kg. The specific value depends on the tested substance.
High-performance liquid chromatography-mass spectrometry (HPLC/MS/MS)
The detection limit is between 0.02-6.0 μg/kg, and the limit of quantification is between 0.1-15.0 μg/kg. The specific value depends on the tested substance.